inserted line thingy
This commit is contained in:
Maieul BOYER
parent
fb3a2d94a0
commit
0e18e20181
9 changed files with 1198 additions and 3 deletions
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@ -6,7 +6,7 @@
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# By: maiboyer <maiboyer@student.42.fr> +#+ +:+ +#+ #
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# By: maiboyer <maiboyer@student.42.fr> +#+ +:+ +#+ #
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# +#+#+#+#+#+ +#+ #
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# +#+#+#+#+#+ +#+ #
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# Created: 2024/04/28 17:28:30 by maiboyer #+# #+# #
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# Created: 2024/04/28 17:28:30 by maiboyer #+# #+# #
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# Updated: 2024/06/09 19:08:50 by maiboyer ### ########.fr #
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# Updated: 2024/07/05 18:00:14 by maiboyer ### ########.fr #
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# #
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# #
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# **************************************************************************** #
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# **************************************************************************** #
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@ -54,7 +54,7 @@ END = \033[0m
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.PHONY: all Bonus
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.PHONY: all Bonus
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LIBS_NAMES = me gmr aq ast parser
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LIBS_NAMES = me gmr aq ast parser line
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LIBS_FILES = $(addprefix $(BUILD_DIR)/, $(addsuffix .a, $(addprefix lib, $(LIBS_NAMES))))
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LIBS_FILES = $(addprefix $(BUILD_DIR)/, $(addsuffix .a, $(addprefix lib, $(LIBS_NAMES))))
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LIBS_FLAGS = $(addprefix -l, $(LIBS_NAMES))
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LIBS_FLAGS = $(addprefix -l, $(LIBS_NAMES))
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@ -62,6 +62,7 @@ all:
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@$(MAKE) -C ./stdme/ "LIB_NAME=$(shell realpath ./stdme)/" "BUILD_DIR=$(BUILD_DIR)" libme.a
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@$(MAKE) -C ./stdme/ "LIB_NAME=$(shell realpath ./stdme)/" "BUILD_DIR=$(BUILD_DIR)" libme.a
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@$(MAKE) -C ./allocator/ "LIB_NAME=$(shell realpath ./allocator)/" "BUILD_DIR=$(BUILD_DIR)" libaq.a
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@$(MAKE) -C ./allocator/ "LIB_NAME=$(shell realpath ./allocator)/" "BUILD_DIR=$(BUILD_DIR)" libaq.a
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@$(MAKE) -C ./ast/ "LIB_NAME=$(shell realpath ./ast)/" "BUILD_DIR=$(BUILD_DIR)" libast.a
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@$(MAKE) -C ./ast/ "LIB_NAME=$(shell realpath ./ast)/" "BUILD_DIR=$(BUILD_DIR)" libast.a
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@$(MAKE) -C ./line/ "LIB_NAME=$(shell realpath ./line)/" "BUILD_DIR=$(BUILD_DIR)" libline.a
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@$(MAKE) -C ./parser/ -f./Grammar.mk "LIB_NAME=$(shell realpath ./parser)/" "BUILD_DIR=$(BUILD_DIR)" libgmr.a
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@$(MAKE) -C ./parser/ -f./Grammar.mk "LIB_NAME=$(shell realpath ./parser)/" "BUILD_DIR=$(BUILD_DIR)" libgmr.a
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@$(MAKE) -C ./parser/ -f./Parser.mk "LIB_NAME=$(shell realpath ./parser)/" "BUILD_DIR=$(BUILD_DIR)" libparser.a
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@$(MAKE) -C ./parser/ -f./Parser.mk "LIB_NAME=$(shell realpath ./parser)/" "BUILD_DIR=$(BUILD_DIR)" libparser.a
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@$(MAKE) -f./Minishell.mk $(NAME)
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@$(MAKE) -f./Minishell.mk $(NAME)
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1
includes/line
Symbolic link
1
includes/line
Symbolic link
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@ -0,0 +1 @@
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../line/include/line
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97
line/Makefile
Normal file
97
line/Makefile
Normal file
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@ -0,0 +1,97 @@
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# **************************************************************************** #
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# #
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# ::: :::::::: #
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# Makefile :+: :+: :+: #
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# +:+ +:+ +:+ #
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# By: maiboyer <maiboyer@student.42.fr> +#+ +:+ +#+ #
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# +#+#+#+#+#+ +#+ #
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# Created: 2023/11/03 13:20:01 by maiboyer #+# #+# #
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# Updated: 2024/07/05 17:57:25 by maiboyer ### ########.fr #
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# #
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# **************************************************************************** #
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BUILD_DIR ?= ../build
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SRC_DIR = src
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INCLUDE_DIR = include output/include ../includes ../output/include/
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LIBS_DIR = .
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GENERIC_DIR = output/src
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GENERIC_INCLUDE = output/include
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BASE_PATH ?= $(shell pwd)
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NAME = libline.a
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LIB_NAME ?=
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TARGET = $(BUILD_DIR)/$(NAME)
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CC ?= clang
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CFLAGS = -Wno-unused-command-line-argument -Wall -Werror -Wextra -g3 -L$(BUILD_DIR) -MMD -rdynamic -DBASE_PATH='"$(BASE_PATH)/"'
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# CFLAGS += -fsanitize=address -fno-omit-frame-pointer -fsanitize-address-use-after-return=runtime -fno-common -fsanitize-address-use-after-scope
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CFLAGS += -O2
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BONUS_FILES =
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LIBS_NAME =
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SUBJECT_URL =
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SRC_FILES = $(shell cat src.list)
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SRC = $(addsuffix .c,$(addprefix $(SRC_DIR)/,$(SRC_FILES)))
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OBJ = $(addsuffix .o,$(addprefix $(BUILD_DIR)/line/,$(SRC_FILES)))
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DEPS = $(addsuffix .d,$(addprefix $(BUILD_DIR)/line/,$(SRC_FILES)))
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LIBS = $(addprefix $(LIBS_DIR)/,$(LIBS_NAME))
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INCLUDES = $(addprefix -I,$(foreach P,$(INCLUDE_DIR) $(LIBS) $(addsuffix /include,$(LIBS)) vendor $(addsuffix /vendor,$(LIBS)),$(realpath $(P))))
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COL_GOLD = \033[93m
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COL_GRAY = \033[90m
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COL_WHITE = \033[37m
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COL_GREEN = \033[32m
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COL_BOLD = \033[1m
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COL_RESET = \033[0m
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# TODO: REMOVE FOR RENDU !!!!!
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CFLAGS += -DPRINT_BACKTRACE
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.PHONY = all bonus clean re subject
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all: $(NAME)
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$(NAME): $(TARGET)
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$(TARGET): $(OBJ)
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@echo -e '$(COL_GRAY) Linking \t$(COL_GOLD)$(TARGET)$(COL_RESET)'
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@ar rcs $(BUILD_DIR)/$(NAME) $(OBJ)
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$(BUILD_DIR)/line/%.o: $(SRC_DIR)/%.c
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@mkdir -p $(dir $@)
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@echo -e '$(COL_GRAY) Building\t$(COL_GREEN)$<$(COL_RESET)'
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@$(CC) $(CFLAGS) $(WERROR) $(INCLUDES) -c $< -o $@
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$(BUILD_DIR)/line/%.o: $(GENERIC_DIR)/%.c
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@mkdir -p $(dir $@)
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@echo -e '$(COL_GRAY) Building\t$(COL_GREEN)$<$(COL_RESET)'
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@$(CC) $(CFLAGS) $(WERROR) $(INCLUDES) -c $< -o $@
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clean:
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@- $(foreach LIB,$(LIBS), \
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make clean LIB_NAME=$(LIB)/ BUILD_DIR=$(realpath $(BUILD_DIR)) -C $(LIB) --no-print-directory || true;\
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)
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@- $(if $(LIB_NAME),,echo -e '$(COL_WHITE)Clearing Artefacts';rm -rf $(BUILD_DIR))
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fclean: clean
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@- $(foreach LIB,$(LIBS), \
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make fclean LIB_NAME=$(LIB)/ BUILD_DIR=$(shell realpath $(BUILD_DIR)) -C $(LIB) --no-print-directory || true;\
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)
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@echo -e '$(COL_WHITE)Clearing Output $(COL_GRAY)$(LIB_NAME)$(NAME)'
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@rm -f $(BUILD_DIR)$(NAME)
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re: fclean all
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subject: subject.txt
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bat --plain ./subject.txt
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subject.txt:
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@curl $(SUBJECT_URL) | pdftotext -layout -nopgbrk -q - subject.txt
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generate_filelist::
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@/usr/bin/env zsh -c "tree -iFf --noreport output | rg '^output/src/(.*)\.c\$$' --replace '\$$1' | sort -u" > ./gen.list
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@/usr/bin/env zsh -c "tree -iFf --noreport src | rg '^src/(.*)\.c\$$' --replace '\$$1' | sort -u" > ./src.list
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-include $(DEPS)
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0
line/gen.list
Normal file
0
line/gen.list
Normal file
75
line/include/line/line.h
Normal file
75
line/include/line/line.h
Normal file
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@ -0,0 +1,75 @@
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/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* line.h :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: maiboyer <maiboyer@student.42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2024/07/05 18:07:02 by maiboyer #+# #+# */
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/* Updated: 2024/07/05 19:59:47 by maiboyer ### ########.fr */
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/* */
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/* ************************************************************************** */
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/// This code is higly inspired by this repository/libary:
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/// https://github.com/antirez/linenoise
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#ifndef LINE_H
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#define LINE_H
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#include "me/fs/fs.h"
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#include "me/types.h"
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#include <termios.h>
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extern t_str linenoiseEditMore;
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typedef struct s_line_state t_line_state;
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/* The linenoiseState structure represents the state during line editing.
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* We pass this state to functions implementing specific editing
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* functionalities. */
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struct s_line_state
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{
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t_fd *input_fd; /* Terminal stdin file descriptor. */
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t_fd *output_fd; /* Terminal stdout file descriptor. */
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t_str buf; /* Edited line buffer. */
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t_usize buflen; /* Edited line buffer size. */
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t_const_str prompt; /* Prompt to display. */
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t_usize prompt_len; /* Prompt length. */
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t_usize pos; /* Current cursor position. */
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t_usize old_pos; /* Previous refresh cursor position. */
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t_usize len; /* Current edited line length. */
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t_usize columns; /* Number of columns in terminal. */
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t_usize old_rows; /* Rows used by last refrehsed line (multiline mode) */
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t_i32 history_index; /* The history index we are currently editing. */
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};
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struct s_raw_mode_state
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{
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bool enabled;
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struct termios state;
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};
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typedef struct s_raw_mode_state t_raw_mode_state;
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/* Non blocking API. */
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int linenoiseEditStart(t_line_state *l, int stdin_fd, int stdout_fd, char *buf, t_usize buflen, const char *prompt);
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char *linenoiseEditFeed(t_line_state *l);
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void linenoiseEditStop(t_line_state *l);
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void linenoiseHide(t_line_state *l);
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void linenoiseShow(t_line_state *l);
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/* Blocking API. */
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char *linenoise(const char *prompt);
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void linenoise_free(void *ptr);
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/* History API. */
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bool linenoise_history_add(t_const_str line);
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t_error linenoiseHistorySave(t_str name);
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t_error linenoise_history_load(t_str name);
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/* Other utilities. */
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void linenoiseClearScreen(void);
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void linenoiseSetMultiLine(int ml);
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void linenoisePrintKeyCodes(void);
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#endif /* LINE_H */
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1
line/src.list
Normal file
1
line/src.list
Normal file
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@ -0,0 +1 @@
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line
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956
line/src/line.c
Normal file
956
line/src/line.c
Normal file
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@ -0,0 +1,956 @@
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#include <ctype.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/ioctl.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <termios.h>
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#include <unistd.h>
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#include "line/line.h"
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#include "me/fs/fs.h"
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#include "me/gnl/gnl.h"
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#include "me/mem/mem.h"
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#include "me/printf/printf.h"
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#include "me/str/str.h"
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#include "me/string/string.h"
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#include "me/types.h"
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#include "me/vec/vec_str.h"
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static t_str linenoiseNoTTY(void);
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static void refreshLineWithFlags(t_line_state *l, int flags);
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t_vec_str *get_history(void)
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{
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static t_vec_str history = {};
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static bool init = false;
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if (!init)
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{
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history = vec_str_new(256, (void (*)())mem_free);
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init = true;
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}
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return (&history);
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}
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enum e_key_action
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{
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KEY_NULL = 0, /* NULL */
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CTRL_A = 1, /* Ctrl+a */
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CTRL_B = 2, /* Ctrl-b */
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CTRL_C = 3, /* Ctrl-c */
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CTRL_D = 4, /* Ctrl-d */
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CTRL_E = 5, /* Ctrl-e */
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CTRL_F = 6, /* Ctrl-f */
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CTRL_H = 8, /* Ctrl-h */
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TAB = 9, /* Tab */
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CTRL_K = 11, /* Ctrl+k */
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CTRL_L = 12, /* Ctrl+l */
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ENTER = 13, /* Enter */
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CTRL_N = 14, /* Ctrl-n */
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CTRL_P = 16, /* Ctrl-p */
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CTRL_T = 20, /* Ctrl-t */
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CTRL_U = 21, /* Ctrl+u */
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CTRL_W = 23, /* Ctrl+w */
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ESC = 27, /* Escape */
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BACKSPACE = 127 /* Backspace */
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};
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#define REFRESH_CLEAN (1 << 0) // Clean the old prompt from the screen
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#define REFRESH_WRITE (1 << 1) // Rewrite the prompt on the screen.
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#define REFRESH_ALL (REFRESH_CLEAN | REFRESH_WRITE) // Do both.
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int linenoiseHistoryAdd(const char *line);
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static void linenoise_uninit_lib(void);
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static void refreshLine(t_line_state *l);
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/* Debugging macro. */
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#if 0
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FILE *lndebug_fp = NULL;
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# define lndebug(...) \
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do \
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{ \
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if (lndebug_fp == NULL) \
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{ \
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lndebug_fp = fopen("/tmp/lndebug.txt", "a"); \
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fprintf(lndebug_fp, "[%d %d %d] p: %d, rows: %d, rpos: %d, max: %d, oldmax: %d\n", (int)l->len, (int)l->pos, (int)l->oldpos, \
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plen, rows, rpos, (int)l->oldrows, old_rows); \
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} \
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fprintf(lndebug_fp, ", " __VA_ARGS__); \
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fflush(lndebug_fp); \
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} while (0)
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#else
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# define lndebug(fmt, ...)
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#endif
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/* ======================= Low level terminal handling ====================== */
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/* Use the ESC [6n escape sequence to query the horizontal cursor position
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* and return it. On error -1 is returned, on success the position of the
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* cursor. */
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static int getCursorPosition(int ifd, int ofd)
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{
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char buf[32];
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int cols, rows;
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unsigned int i = 0;
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/* Report cursor location */
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if (write(ofd, "\x1b[6n", 4) != 4)
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return -1;
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/* Read the response: ESC [ rows ; cols R */
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while (i < sizeof(buf) - 1)
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{
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if (read(ifd, buf + i, 1) != 1)
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break;
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if (buf[i] == 'R')
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break;
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i++;
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}
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buf[i] = '\0';
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/* Parse it. */
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if (buf[0] != ESC || buf[1] != '[')
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return -1;
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if (sscanf(buf + 2, "%d;%d", &rows, &cols) != 2)
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return -1;
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return cols;
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}
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/* Try to get the number of columns in the current terminal, or assume 80
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* if it fails. */
|
||||||
|
static t_u32 getColumns(int ifd, int ofd)
|
||||||
|
{
|
||||||
|
struct winsize ws;
|
||||||
|
t_u32 start, cols;
|
||||||
|
|
||||||
|
if (ioctl(1, TIOCGWINSZ, &ws) == -1 || ws.ws_col == 0)
|
||||||
|
{
|
||||||
|
/* ioctl() failed. Try to query the terminal itself. */
|
||||||
|
|
||||||
|
/* Get the initial position so we can restore it later. */
|
||||||
|
start = getCursorPosition(ifd, ofd);
|
||||||
|
if (start == -1)
|
||||||
|
return 80;
|
||||||
|
|
||||||
|
/* Go to right margin and get position. */
|
||||||
|
if (write(ofd, "\x1b[999C", 6) != 6)
|
||||||
|
return 80;
|
||||||
|
cols = getCursorPosition(ifd, ofd);
|
||||||
|
if (cols == -1)
|
||||||
|
return 80;
|
||||||
|
|
||||||
|
/* Restore position. */
|
||||||
|
if (cols > start)
|
||||||
|
{
|
||||||
|
t_u8 seq[32];
|
||||||
|
me_printf(seq, 32, "\x1b[%dD", cols - start);
|
||||||
|
(void)!(write(ofd, seq, strlen(seq)) == -1);
|
||||||
|
}
|
||||||
|
return cols;
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
return ws.ws_col;
|
||||||
|
}
|
||||||
|
|
||||||
|
failed:
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Clear the screen. Used to handle ctrl+l */
|
||||||
|
void linenoiseClearScreen(void)
|
||||||
|
{
|
||||||
|
(void)!write(STDOUT_FILENO, "\x1b[H\x1b[2J", 7);
|
||||||
|
}
|
||||||
|
|
||||||
|
t_raw_mode_state *get_raw_mode_state(void)
|
||||||
|
{
|
||||||
|
static t_raw_mode_state state = {};
|
||||||
|
|
||||||
|
return (&state);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Raw mode: 1960 magic shit. */
|
||||||
|
static t_error enableRawMode(int fd)
|
||||||
|
{
|
||||||
|
struct termios raw;
|
||||||
|
t_raw_mode_state *raw_state;
|
||||||
|
|
||||||
|
raw_state = get_raw_mode_state();
|
||||||
|
|
||||||
|
if (!isatty(STDIN_FILENO))
|
||||||
|
return (errno = ENOTTY, ERROR);
|
||||||
|
if (tcgetattr(fd, &raw_state->state) == -1)
|
||||||
|
return (errno = ENOTTY, ERROR);
|
||||||
|
|
||||||
|
raw = raw_state->state; /* modify the original mode */
|
||||||
|
/* input modes: no break, no CR to NL, no parity check, no strip char,
|
||||||
|
* no start/stop output control. */
|
||||||
|
raw.c_iflag &= ~(BRKINT | ICRNL | INPCK | ISTRIP | IXON);
|
||||||
|
/* output modes - disable post processing */
|
||||||
|
raw.c_oflag &= ~(OPOST);
|
||||||
|
/* control modes - set 8 bit chars */
|
||||||
|
raw.c_cflag |= (CS8);
|
||||||
|
/* local modes - choing off, canonical off, no extended functions,
|
||||||
|
* no signal chars (^Z,^C) */
|
||||||
|
raw.c_lflag &= ~(ECHO | ICANON | IEXTEN | ISIG);
|
||||||
|
/* control chars - set return condition: min number of bytes and timer.
|
||||||
|
* We want read to return every single byte, without timeout. */
|
||||||
|
raw.c_cc[VMIN] = 1;
|
||||||
|
raw.c_cc[VTIME] = 0; /* 1 byte, no timer */
|
||||||
|
|
||||||
|
/* put terminal in raw mode after flushing */
|
||||||
|
if (tcsetattr(fd, TCSAFLUSH, &raw) < 0)
|
||||||
|
return (errno = ENOTTY, ERROR);
|
||||||
|
raw_state->enabled = true;
|
||||||
|
return (NO_ERROR);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void disableRawMode(int fd)
|
||||||
|
{
|
||||||
|
t_raw_mode_state *state;
|
||||||
|
|
||||||
|
state = get_raw_mode_state();
|
||||||
|
if (state->enabled && tcsetattr(fd, TCSAFLUSH, &state->state) != -1)
|
||||||
|
state->enabled = false;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* =========================== Line editing ================================= */
|
||||||
|
|
||||||
|
/* We define a very simple "append buffer" structure, that is an heap
|
||||||
|
* allocated string where we can append to. This is useful in order to
|
||||||
|
* write all the escape sequences in a buffer and flush them to the standard
|
||||||
|
* output in a single call, to avoid flickering effects. */
|
||||||
|
struct abuf
|
||||||
|
{
|
||||||
|
char *b;
|
||||||
|
int len;
|
||||||
|
};
|
||||||
|
|
||||||
|
static void abInit(struct abuf *ab)
|
||||||
|
{
|
||||||
|
ab->b = NULL;
|
||||||
|
ab->len = 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void abAppend(struct abuf *ab, const char *s, int len)
|
||||||
|
{
|
||||||
|
char *new = mem_realloc(ab->b, ab->len + len);
|
||||||
|
|
||||||
|
if (new == NULL)
|
||||||
|
return;
|
||||||
|
memcpy(new + ab->len, s, len);
|
||||||
|
ab->b = new;
|
||||||
|
ab->len += len;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void abFree(struct abuf *ab)
|
||||||
|
{
|
||||||
|
mem_free(ab->b);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Single line low level line refresh.
|
||||||
|
*
|
||||||
|
* Rewrite the currently edited line accordingly to the buffer content,
|
||||||
|
* cursor position, and number of columns of the terminal.
|
||||||
|
*
|
||||||
|
* Flags is REFRESH_* macros. The function can just remove the old
|
||||||
|
* prompt, just write it, or both. */
|
||||||
|
static void refreshSingleLine(struct s_line_state *l, int flags)
|
||||||
|
{
|
||||||
|
char seq[64];
|
||||||
|
size_t plen = strlen(l->prompt);
|
||||||
|
int fd = l->output_fd;
|
||||||
|
char *buf = l->buf;
|
||||||
|
size_t len = l->len;
|
||||||
|
size_t pos = l->pos;
|
||||||
|
struct abuf ab;
|
||||||
|
|
||||||
|
while ((plen + pos) >= l->columns)
|
||||||
|
{
|
||||||
|
buf++;
|
||||||
|
len--;
|
||||||
|
pos--;
|
||||||
|
}
|
||||||
|
while (plen + len > l->columns)
|
||||||
|
{
|
||||||
|
len--;
|
||||||
|
}
|
||||||
|
|
||||||
|
abInit(&ab);
|
||||||
|
/* Cursor to left edge */
|
||||||
|
snprintf(seq, sizeof(seq), "\r");
|
||||||
|
abAppend(&ab, seq, strlen(seq));
|
||||||
|
|
||||||
|
if (flags & REFRESH_WRITE)
|
||||||
|
{
|
||||||
|
/* Write the prompt and the current buffer content */
|
||||||
|
abAppend(&ab, l->prompt, strlen(l->prompt));
|
||||||
|
abAppend(&ab, buf, len);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Erase to right */
|
||||||
|
snprintf(seq, sizeof(seq), "\x1b[0K");
|
||||||
|
abAppend(&ab, seq, strlen(seq));
|
||||||
|
|
||||||
|
if (flags & REFRESH_WRITE)
|
||||||
|
{
|
||||||
|
/* Move cursor to original position. */
|
||||||
|
snprintf(seq, sizeof(seq), "\r\x1b[%dC", (int)(pos + plen));
|
||||||
|
abAppend(&ab, seq, strlen(seq));
|
||||||
|
}
|
||||||
|
|
||||||
|
if (write(fd, ab.b, ab.len) == -1)
|
||||||
|
{
|
||||||
|
} /* Can't recover from write error. */
|
||||||
|
abFree(&ab);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Calls the two low level functions refreshSingleLine() or
|
||||||
|
* refreshMultiLine() according to the selected mode. */
|
||||||
|
static void refreshLineWithFlags(struct s_line_state *l, int flags)
|
||||||
|
{
|
||||||
|
refreshSingleLine(l, flags);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Utility function to avoid specifying REFRESH_ALL all the times. */
|
||||||
|
static void refreshLine(struct s_line_state *l)
|
||||||
|
{
|
||||||
|
refreshLineWithFlags(l, REFRESH_ALL);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Hide the current line, when using the multiplexing API. */
|
||||||
|
void linenoiseHide(struct s_line_state *l)
|
||||||
|
{
|
||||||
|
refreshSingleLine(l, REFRESH_CLEAN);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Show the current line, when using the multiplexing API. */
|
||||||
|
void linenoiseShow(struct s_line_state *l)
|
||||||
|
{
|
||||||
|
refreshLineWithFlags(l, REFRESH_WRITE);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Insert the character 'c' at cursor current position.
|
||||||
|
*
|
||||||
|
* On error writing to the terminal -1 is returned, otherwise 0. */
|
||||||
|
int linenoiseEditInsert(struct s_line_state *l, char c)
|
||||||
|
{
|
||||||
|
if (l->len < l->buflen)
|
||||||
|
{
|
||||||
|
if (l->len == l->pos)
|
||||||
|
{
|
||||||
|
l->buf[l->pos] = c;
|
||||||
|
l->pos++;
|
||||||
|
l->len++;
|
||||||
|
l->buf[l->len] = '\0';
|
||||||
|
refreshLine(l);
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
memmove(l->buf + l->pos + 1, l->buf + l->pos, l->len - l->pos);
|
||||||
|
l->buf[l->pos] = c;
|
||||||
|
l->len++;
|
||||||
|
l->pos++;
|
||||||
|
l->buf[l->len] = '\0';
|
||||||
|
refreshLine(l);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Move cursor on the left. */
|
||||||
|
void linenoiseEditMoveLeft(struct s_line_state *l)
|
||||||
|
{
|
||||||
|
if (l->pos > 0)
|
||||||
|
{
|
||||||
|
l->pos--;
|
||||||
|
refreshLine(l);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Move cursor on the right. */
|
||||||
|
void linenoiseEditMoveRight(struct s_line_state *l)
|
||||||
|
{
|
||||||
|
if (l->pos != l->len)
|
||||||
|
{
|
||||||
|
l->pos++;
|
||||||
|
refreshLine(l);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Move cursor to the start of the line. */
|
||||||
|
void linenoiseEditMoveHome(struct s_line_state *l)
|
||||||
|
{
|
||||||
|
if (l->pos != 0)
|
||||||
|
{
|
||||||
|
l->pos = 0;
|
||||||
|
refreshLine(l);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Move cursor to the end of the line. */
|
||||||
|
void linenoiseEditMoveEnd(struct s_line_state *l)
|
||||||
|
{
|
||||||
|
if (l->pos != l->len)
|
||||||
|
{
|
||||||
|
l->pos = l->len;
|
||||||
|
refreshLine(l);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Substitute the currently edited line with the next or previous history
|
||||||
|
* entry as specified by 'dir'. */
|
||||||
|
#define LINENOISE_HISTORY_NEXT 0
|
||||||
|
#define LINENOISE_HISTORY_PREV 1
|
||||||
|
void linenoiseEditHistoryNext(struct s_line_state *l, int dir)
|
||||||
|
{
|
||||||
|
t_vec_str *history;
|
||||||
|
|
||||||
|
history = get_history();
|
||||||
|
|
||||||
|
if (history->len > 1)
|
||||||
|
{
|
||||||
|
/* Update the current history entry before to
|
||||||
|
* overwrite it with the next one. */
|
||||||
|
mem_free(history->buffer[history->len - 1 - l->history_index]);
|
||||||
|
history->buffer[history->len - 1 - l->history_index] = strdup(l->buf);
|
||||||
|
/* Show the new entry */
|
||||||
|
l->history_index += (dir == LINENOISE_HISTORY_PREV) ? 1 : -1;
|
||||||
|
if (l->history_index < 0)
|
||||||
|
{
|
||||||
|
l->history_index = 0;
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
else if (l->history_index >= history->len)
|
||||||
|
{
|
||||||
|
l->history_index = history->len - 1;
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
strncpy(l->buf, history->buffer[history->len - 1 - l->history_index], l->buflen);
|
||||||
|
l->buf[l->buflen - 1] = '\0';
|
||||||
|
l->len = l->pos = strlen(l->buf);
|
||||||
|
refreshLine(l);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Delete the character at the right of the cursor without altering the cursor
|
||||||
|
* position. Basically this is what happens with the "Delete" keyboard key. */
|
||||||
|
void linenoiseEditDelete(struct s_line_state *l)
|
||||||
|
{
|
||||||
|
if (l->len > 0 && l->pos < l->len)
|
||||||
|
{
|
||||||
|
memmove(l->buf + l->pos, l->buf + l->pos + 1, l->len - l->pos - 1);
|
||||||
|
l->len--;
|
||||||
|
l->buf[l->len] = '\0';
|
||||||
|
refreshLine(l);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Backspace implementation. */
|
||||||
|
void linenoiseEditBackspace(struct s_line_state *l)
|
||||||
|
{
|
||||||
|
if (l->pos > 0 && l->len > 0)
|
||||||
|
{
|
||||||
|
memmove(l->buf + l->pos - 1, l->buf + l->pos, l->len - l->pos);
|
||||||
|
l->pos--;
|
||||||
|
l->len--;
|
||||||
|
l->buf[l->len] = '\0';
|
||||||
|
refreshLine(l);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Delete the previosu word, maintaining the cursor at the start of the
|
||||||
|
* current word. */
|
||||||
|
void linenoiseEditDeletePrevWord(struct s_line_state *l)
|
||||||
|
{
|
||||||
|
size_t old_pos = l->pos;
|
||||||
|
size_t diff;
|
||||||
|
|
||||||
|
while (l->pos > 0 && l->buf[l->pos - 1] == ' ')
|
||||||
|
l->pos--;
|
||||||
|
while (l->pos > 0 && l->buf[l->pos - 1] != ' ')
|
||||||
|
l->pos--;
|
||||||
|
diff = old_pos - l->pos;
|
||||||
|
memmove(l->buf + l->pos, l->buf + old_pos, l->len - old_pos + 1);
|
||||||
|
l->len -= diff;
|
||||||
|
refreshLine(l);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* This function is part of the multiplexed API of Linenoise, that is used
|
||||||
|
* in order to implement the blocking variant of the API but can also be
|
||||||
|
* called by the user directly in an event driven program. It will:
|
||||||
|
*
|
||||||
|
* 1. Initialize the linenoise state passed by the user.
|
||||||
|
* 2. Put the terminal in RAW mode.
|
||||||
|
* 3. Show the prompt.
|
||||||
|
* 4. Return control to the user, that will have to call linenoiseEditFeed()
|
||||||
|
* each time there is some data arriving in the standard input.
|
||||||
|
*
|
||||||
|
* The user can also call linenoiseEditHide() and linenoiseEditShow() if it
|
||||||
|
* is required to show some input arriving asyncronously, without mixing
|
||||||
|
* it with the currently edited line.
|
||||||
|
*
|
||||||
|
* When linenoiseEditFeed() returns non-NULL, the user finished with the
|
||||||
|
* line editing session (pressed enter CTRL-D/C): in this case the caller
|
||||||
|
* needs to call linenoiseEditStop() to put back the terminal in normal
|
||||||
|
* mode. This will not destroy the buffer, as long as the linenoiseState
|
||||||
|
* is still valid in the context of the caller.
|
||||||
|
*
|
||||||
|
* The function returns 0 on success, or -1 if writing to standard output
|
||||||
|
* fails. If stdin_fd or stdout_fd are set to -1, the default is to use
|
||||||
|
* STDIN_FILENO and STDOUT_FILENO.
|
||||||
|
*/
|
||||||
|
int linenoiseEditStart(struct s_line_state *l, int stdin_fd, int stdout_fd, char *buf, size_t buflen, const char *prompt)
|
||||||
|
{
|
||||||
|
/* Populate the linenoise state that we pass to functions implementing
|
||||||
|
* specific editing functionalities. */
|
||||||
|
l->in_completion = 0;
|
||||||
|
l->input_fd = stdin_fd != -1 ? stdin_fd : STDIN_FILENO;
|
||||||
|
l->output_fd = stdout_fd != -1 ? stdout_fd : STDOUT_FILENO;
|
||||||
|
l->buf = buf;
|
||||||
|
l->buflen = buflen;
|
||||||
|
l->prompt = prompt;
|
||||||
|
l->prompt_len = strlen(prompt);
|
||||||
|
l->oldpos = l->pos = 0;
|
||||||
|
l->len = 0;
|
||||||
|
|
||||||
|
// /* Enter raw mode. */
|
||||||
|
// if (enableRawMode(l->ifd) == -1)
|
||||||
|
// return -1;
|
||||||
|
|
||||||
|
l->columns = getColumns(stdin_fd, stdout_fd);
|
||||||
|
l->old_rows = 0;
|
||||||
|
l->history_index = 0;
|
||||||
|
|
||||||
|
/* Buffer starts empty. */
|
||||||
|
l->buf[0] = '\0';
|
||||||
|
l->buflen--; /* Make sure there is always space for the nulterm */
|
||||||
|
|
||||||
|
/* If stdin is not a tty, stop here with the initialization. We
|
||||||
|
* will actually just read a line from standard input in blocking
|
||||||
|
* mode later, in linenoiseEditFeed(). */
|
||||||
|
if (!isatty(l->input_fd))
|
||||||
|
return 0;
|
||||||
|
|
||||||
|
/* The latest history entry is always our current buffer, that
|
||||||
|
* initially is just an empty string. */
|
||||||
|
linenoise_history_add("");
|
||||||
|
|
||||||
|
if (write(l->output_fd, prompt, l->prompt_len) == -1)
|
||||||
|
return -1;
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
char *linenoiseEditMore = "If you see this, you are misusing the API: when linenoiseEditFeed() is called, if it returns linenoiseEditMore "
|
||||||
|
"the user is yet editing the line. See the README file for more information.";
|
||||||
|
|
||||||
|
/* This function is part of the multiplexed API of linenoise, see the top
|
||||||
|
* comment on linenoiseEditStart() for more information. Call this function
|
||||||
|
* each time there is some data to read from the standard input file
|
||||||
|
* descriptor. In the case of blocking operations, this function can just be
|
||||||
|
* called in a loop, and block.
|
||||||
|
*
|
||||||
|
* The function returns linenoiseEditMore to signal that line editing is still
|
||||||
|
* in progress, that is, the user didn't yet pressed enter / CTRL-D. Otherwise
|
||||||
|
* the function returns the pointer to the heap-allocated buffer with the
|
||||||
|
* edited line, that the user should mem_free with linenoiseFree().
|
||||||
|
*
|
||||||
|
* On special conditions, NULL is returned and errno is populated:
|
||||||
|
*
|
||||||
|
* EAGAIN if the user pressed Ctrl-C
|
||||||
|
* ENOENT if the user pressed Ctrl-D
|
||||||
|
*
|
||||||
|
* Some other errno: I/O error.
|
||||||
|
*/
|
||||||
|
char *linenoiseEditFeed(struct s_line_state *l)
|
||||||
|
{
|
||||||
|
/* Not a TTY, pass control to line reading without character
|
||||||
|
* count limits. */
|
||||||
|
if (!isatty(l->input_fd))
|
||||||
|
return linenoiseNoTTY();
|
||||||
|
|
||||||
|
char c;
|
||||||
|
int nread;
|
||||||
|
char seq[3];
|
||||||
|
t_vec_str *history = get_history();
|
||||||
|
|
||||||
|
nread = read(l->input_fd, &c, 1);
|
||||||
|
if (nread <= 0)
|
||||||
|
return NULL;
|
||||||
|
|
||||||
|
switch (c)
|
||||||
|
{
|
||||||
|
case ENTER: /* enter */
|
||||||
|
history->len--;
|
||||||
|
mem_free(history->buffer[history->len]);
|
||||||
|
return strdup(l->buf);
|
||||||
|
case CTRL_C: /* ctrl-c */
|
||||||
|
errno = EAGAIN;
|
||||||
|
return NULL;
|
||||||
|
case BACKSPACE: /* backspace */
|
||||||
|
case 8: /* ctrl-h */
|
||||||
|
linenoiseEditBackspace(l);
|
||||||
|
break;
|
||||||
|
case CTRL_D: /* ctrl-d, remove char at right of cursor, or if the
|
||||||
|
line is empty, act as end-of-file. */
|
||||||
|
if (l->len > 0)
|
||||||
|
{
|
||||||
|
linenoiseEditDelete(l);
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
history->len--;
|
||||||
|
mem_free(history->buffer[history->len]);
|
||||||
|
errno = ENOENT;
|
||||||
|
return NULL;
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
case CTRL_T: /* ctrl-t, swaps current character with previous. */
|
||||||
|
if (l->pos > 0 && l->pos < l->len)
|
||||||
|
{
|
||||||
|
int aux = l->buf[l->pos - 1];
|
||||||
|
l->buf[l->pos - 1] = l->buf[l->pos];
|
||||||
|
l->buf[l->pos] = aux;
|
||||||
|
if (l->pos != l->len - 1)
|
||||||
|
l->pos++;
|
||||||
|
refreshLine(l);
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
case CTRL_B: /* ctrl-b */
|
||||||
|
linenoiseEditMoveLeft(l);
|
||||||
|
break;
|
||||||
|
case CTRL_F: /* ctrl-f */
|
||||||
|
linenoiseEditMoveRight(l);
|
||||||
|
break;
|
||||||
|
case CTRL_P: /* ctrl-p */
|
||||||
|
linenoiseEditHistoryNext(l, LINENOISE_HISTORY_PREV);
|
||||||
|
break;
|
||||||
|
case CTRL_N: /* ctrl-n */
|
||||||
|
linenoiseEditHistoryNext(l, LINENOISE_HISTORY_NEXT);
|
||||||
|
break;
|
||||||
|
case ESC: /* escape sequence */
|
||||||
|
/* Read the next two bytes representing the escape sequence.
|
||||||
|
* Use two calls to handle slow terminals returning the two
|
||||||
|
* chars at different times. */
|
||||||
|
if (read(l->input_fd, seq, 1) == -1)
|
||||||
|
break;
|
||||||
|
if (read(l->input_fd, seq + 1, 1) == -1)
|
||||||
|
break;
|
||||||
|
|
||||||
|
/* ESC [ sequences. */
|
||||||
|
if (seq[0] == '[')
|
||||||
|
{
|
||||||
|
if (seq[1] >= '0' && seq[1] <= '9')
|
||||||
|
{
|
||||||
|
/* Extended escape, read additional byte. */
|
||||||
|
if (read(l->input_fd, seq + 2, 1) == -1)
|
||||||
|
break;
|
||||||
|
if (seq[2] == '~')
|
||||||
|
{
|
||||||
|
switch (seq[1])
|
||||||
|
{
|
||||||
|
case '3': /* Delete key. */
|
||||||
|
linenoiseEditDelete(l);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
switch (seq[1])
|
||||||
|
{
|
||||||
|
case 'A': /* Up */
|
||||||
|
linenoiseEditHistoryNext(l, LINENOISE_HISTORY_PREV);
|
||||||
|
break;
|
||||||
|
case 'B': /* Down */
|
||||||
|
linenoiseEditHistoryNext(l, LINENOISE_HISTORY_NEXT);
|
||||||
|
break;
|
||||||
|
case 'C': /* Right */
|
||||||
|
linenoiseEditMoveRight(l);
|
||||||
|
break;
|
||||||
|
case 'D': /* Left */
|
||||||
|
linenoiseEditMoveLeft(l);
|
||||||
|
break;
|
||||||
|
case 'H': /* Home */
|
||||||
|
linenoiseEditMoveHome(l);
|
||||||
|
break;
|
||||||
|
case 'F': /* End*/
|
||||||
|
linenoiseEditMoveEnd(l);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/* ESC O sequences. */
|
||||||
|
else if (seq[0] == 'O')
|
||||||
|
{
|
||||||
|
switch (seq[1])
|
||||||
|
{
|
||||||
|
case 'H': /* Home */
|
||||||
|
linenoiseEditMoveHome(l);
|
||||||
|
break;
|
||||||
|
case 'F': /* End*/
|
||||||
|
linenoiseEditMoveEnd(l);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
if (linenoiseEditInsert(l, c))
|
||||||
|
return NULL;
|
||||||
|
break;
|
||||||
|
case CTRL_U: /* Ctrl+u, delete the whole line. */
|
||||||
|
l->buf[0] = '\0';
|
||||||
|
l->pos = l->len = 0;
|
||||||
|
refreshLine(l);
|
||||||
|
break;
|
||||||
|
case CTRL_K: /* Ctrl+k, delete from current to end of line. */
|
||||||
|
l->buf[l->pos] = '\0';
|
||||||
|
l->len = l->pos;
|
||||||
|
refreshLine(l);
|
||||||
|
break;
|
||||||
|
case CTRL_A: /* Ctrl+a, go to the start of the line */
|
||||||
|
linenoiseEditMoveHome(l);
|
||||||
|
break;
|
||||||
|
case CTRL_E: /* ctrl+e, go to the end of the line */
|
||||||
|
linenoiseEditMoveEnd(l);
|
||||||
|
break;
|
||||||
|
case CTRL_L: /* ctrl+l, clear screen */
|
||||||
|
linenoiseClearScreen();
|
||||||
|
refreshLine(l);
|
||||||
|
break;
|
||||||
|
case CTRL_W: /* ctrl+w, delete previous word */
|
||||||
|
linenoiseEditDeletePrevWord(l);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
return linenoiseEditMore;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* This is part of the multiplexed linenoise API. See linenoiseEditStart()
|
||||||
|
* for more information. This function is called when linenoiseEditFeed()
|
||||||
|
* returns something different than NULL. At this point the user input
|
||||||
|
* is in the buffer, and we can restore the terminal in normal mode. */
|
||||||
|
void linenoiseEditStop(struct s_line_state *l)
|
||||||
|
{
|
||||||
|
if (!isatty(l->input_fd))
|
||||||
|
return;
|
||||||
|
// disableRawMode(l->ifd);
|
||||||
|
printf("\n");
|
||||||
|
}
|
||||||
|
|
||||||
|
/* This just implements a blocking loop for the multiplexed API.
|
||||||
|
* In many applications that are not event-drivern, we can just call
|
||||||
|
* the blocking linenoise API, wait for the user to complete the editing
|
||||||
|
* and return the buffer. */
|
||||||
|
static char *linenoiseBlockingEdit(int stdin_fd, int stdout_fd, char *buf, size_t buflen, const char *prompt)
|
||||||
|
{
|
||||||
|
t_line_state l;
|
||||||
|
|
||||||
|
/* Editing without a buffer is invalid. */
|
||||||
|
if (buflen == 0)
|
||||||
|
{
|
||||||
|
errno = EINVAL;
|
||||||
|
return (NULL);
|
||||||
|
}
|
||||||
|
|
||||||
|
linenoiseEditStart(&l, stdin_fd, stdout_fd, buf, buflen, prompt);
|
||||||
|
char *res;
|
||||||
|
while ((res = linenoiseEditFeed(&l)) == linenoiseEditMore)
|
||||||
|
;
|
||||||
|
linenoiseEditStop(&l);
|
||||||
|
return res;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* This special mode is used by linenoise in order to print scan codes
|
||||||
|
* on screen for debugging / development purposes. It is implemented
|
||||||
|
* by the linenoise_example program using the --keycodes option. */
|
||||||
|
void linenoisePrintKeyCodes(void)
|
||||||
|
{
|
||||||
|
char quit[4];
|
||||||
|
|
||||||
|
printf("Linenoise key codes debugging mode.\n"
|
||||||
|
"Press keys to see scan codes. Type 'quit' at any time to exit.\n");
|
||||||
|
// if (enableRawMode(STDIN_FILENO) == -1)
|
||||||
|
// return;
|
||||||
|
memset(quit, ' ', 4);
|
||||||
|
while (1)
|
||||||
|
{
|
||||||
|
char c;
|
||||||
|
int nread;
|
||||||
|
|
||||||
|
nread = read(STDIN_FILENO, &c, 1);
|
||||||
|
if (nread <= 0)
|
||||||
|
continue;
|
||||||
|
memmove(quit, quit + 1, sizeof(quit) - 1); /* shift string to left. */
|
||||||
|
quit[sizeof(quit) - 1] = c; /* Insert current char on the right. */
|
||||||
|
if (memcmp(quit, "quit", sizeof(quit)) == 0)
|
||||||
|
break;
|
||||||
|
|
||||||
|
printf("'%c' %02x (%d) (type quit to exit)\n", isprint(c) ? c : '?', (int)c, (int)c);
|
||||||
|
printf("\r"); /* Go left edge manually, we are in raw mode. */
|
||||||
|
fflush(stdout);
|
||||||
|
}
|
||||||
|
// disableRawMode(STDIN_FILENO);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* This function is called when linenoise() is called with the standard
|
||||||
|
* input file descriptor not attached to a TTY. So for example when the
|
||||||
|
* program using linenoise is called in pipe or with a file redirected
|
||||||
|
* to its standard input. In this case, we want to be able to return the
|
||||||
|
* line regardless of its length (by default we are limited to 4k). */
|
||||||
|
static t_str linenoiseNoTTY(void)
|
||||||
|
{
|
||||||
|
t_string line;
|
||||||
|
t_isize ret;
|
||||||
|
char chr;
|
||||||
|
|
||||||
|
line = string_new(16);
|
||||||
|
while (true)
|
||||||
|
{
|
||||||
|
chr = '\n';
|
||||||
|
ret = read(STDIN_FILENO, &chr, 1);
|
||||||
|
if (ret < 0)
|
||||||
|
return (string_free(line), NULL);
|
||||||
|
if (ret == 0 || chr == '\n')
|
||||||
|
return (line.buf);
|
||||||
|
else
|
||||||
|
string_push_char(&line, chr);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/* The high level function that is the main API of the linenoise library.
|
||||||
|
* This function checks if the terminal has basic capabilities, just checking
|
||||||
|
* for a blacklist of stupid terminals, and later either calls the line
|
||||||
|
* editing function or uses dummy fgets() so that you will be able to type
|
||||||
|
* something even in the most desperate of the conditions. */
|
||||||
|
char *linenoise(const char *prompt)
|
||||||
|
{
|
||||||
|
char buf[4096];
|
||||||
|
|
||||||
|
if (!isatty(STDIN_FILENO))
|
||||||
|
{
|
||||||
|
/* Not a tty: read from file / pipe. In this mode we don't want any
|
||||||
|
* limit to the line size, so we call a function to handle that. */
|
||||||
|
return linenoiseNoTTY();
|
||||||
|
}
|
||||||
|
{
|
||||||
|
char *retval = linenoiseBlockingEdit(STDIN_FILENO, STDOUT_FILENO, buf, 4096, prompt);
|
||||||
|
return retval;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/* This is just a wrapper the user may want to call in order to make sure
|
||||||
|
* the linenoise returned buffer is mem_freed with the same allocator it was
|
||||||
|
* created with. Useful when the main program is using an alternative
|
||||||
|
* allocator. */
|
||||||
|
void linenoise_free(void *ptr)
|
||||||
|
{
|
||||||
|
if (ptr == linenoiseEditMore)
|
||||||
|
return; // Protect from API misuse.
|
||||||
|
mem_free(ptr);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* ================================ History ================================= */
|
||||||
|
|
||||||
|
/* Free the history, but does not reset it. Only used when we have to
|
||||||
|
* exit() to avoid memory leaks are reported by valgrind & co. */
|
||||||
|
static void free_history(void)
|
||||||
|
{
|
||||||
|
t_vec_str *history = get_history();
|
||||||
|
vec_str_free(*history);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* At exit we'll try to fix the terminal to the initial conditions. */
|
||||||
|
static void linenoise_uninit_lib(void)
|
||||||
|
{
|
||||||
|
// disableRawMode(STDIN_FILENO);
|
||||||
|
free_history();
|
||||||
|
}
|
||||||
|
|
||||||
|
/* This is the API call to add a new entry in the linenoise history.
|
||||||
|
* It uses a fixed array of char pointers that are shifted (memmoved)
|
||||||
|
* when the history max length is reached in order to remove the older
|
||||||
|
* entry and make room for the new one, so it is not exactly suitable for huge
|
||||||
|
* histories, but will work well for a few hundred of entries.
|
||||||
|
*
|
||||||
|
* Using a circular buffer is smarter, but a bit more complex to handle. */
|
||||||
|
bool linenoise_history_add(t_const_str line)
|
||||||
|
{
|
||||||
|
t_str linecopy;
|
||||||
|
t_vec_str *history;
|
||||||
|
|
||||||
|
history = get_history();
|
||||||
|
|
||||||
|
if (history->len != 0 && !strcmp(history->buffer[history->len - 1], line))
|
||||||
|
return (false);
|
||||||
|
linecopy = str_clone(line);
|
||||||
|
if (linecopy == NULL)
|
||||||
|
return (false);
|
||||||
|
vec_str_push(history, linecopy);
|
||||||
|
return (true);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Save the history in the specified file. On success 0 is returned
|
||||||
|
* otherwise -1 is returned. */
|
||||||
|
t_error linenoise_history_save(t_str name)
|
||||||
|
{
|
||||||
|
t_fd *fd;
|
||||||
|
t_usize j;
|
||||||
|
t_vec_str *history;
|
||||||
|
|
||||||
|
history = get_history();
|
||||||
|
|
||||||
|
fd = open_fd(name, FD_READ, FD_CLOSE_ON_EXEC | FD_TRUNCATE | FD_CREATE, FP_OWRITE);
|
||||||
|
if (fd == NULL)
|
||||||
|
return (ERROR);
|
||||||
|
j = 0;
|
||||||
|
while (j < history->len)
|
||||||
|
{
|
||||||
|
write(fd->fd, history->buffer[j], str_len(history->buffer[j]));
|
||||||
|
write(fd->fd, "\n", 1);
|
||||||
|
j++;
|
||||||
|
}
|
||||||
|
close_fd(fd);
|
||||||
|
return (NO_ERROR);
|
||||||
|
}
|
||||||
|
|
||||||
|
t_error gnl_wrapper(t_fd *fd, t_string *out)
|
||||||
|
{
|
||||||
|
bool error;
|
||||||
|
t_string value;
|
||||||
|
|
||||||
|
if (out == NULL || fd == NULL)
|
||||||
|
return (ERROR);
|
||||||
|
value = get_next_line(fd->fd, &error);
|
||||||
|
if (error)
|
||||||
|
return (ERROR);
|
||||||
|
return (*out = value, NO_ERROR);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Load the history from the specified file. If the file does not exist
|
||||||
|
* zero is returned and no operation is performed.
|
||||||
|
*
|
||||||
|
* If the file exists and the operation succeeded 0 is returned, otherwise
|
||||||
|
* on error -1 is returned. */
|
||||||
|
t_error linenoise_history_load(t_str name)
|
||||||
|
{
|
||||||
|
t_fd *fd;
|
||||||
|
t_string tmp;
|
||||||
|
t_vec_str *history;
|
||||||
|
|
||||||
|
fd = open_fd(name, FD_READ, FD_CLOSE_ON_EXEC, FP_ALL_READ);
|
||||||
|
if (fd == NULL)
|
||||||
|
return (ERROR);
|
||||||
|
while (!gnl_wrapper(fd, &tmp))
|
||||||
|
{
|
||||||
|
while (tmp.len != 0 && (tmp.buf[tmp.len - 1] == '\n' || tmp.buf[tmp.len - 1] == '\r'))
|
||||||
|
string_pop(&tmp);
|
||||||
|
vec_str_push(history, tmp.buf);
|
||||||
|
}
|
||||||
|
close_fd(fd);
|
||||||
|
return (NO_ERROR);
|
||||||
|
}
|
||||||
|
|
@ -6,7 +6,7 @@
|
||||||
/* By: maiboyer <maiboyer@student.42.fr> +#+ +:+ +#+ */
|
/* By: maiboyer <maiboyer@student.42.fr> +#+ +:+ +#+ */
|
||||||
/* +#+#+#+#+#+ +#+ */
|
/* +#+#+#+#+#+ +#+ */
|
||||||
/* Created: 2023/11/16 18:10:27 by maiboyer #+# #+# */
|
/* Created: 2023/11/16 18:10:27 by maiboyer #+# #+# */
|
||||||
/* Updated: 2024/02/09 15:06:53 by maiboyer ### ########.fr */
|
/* Updated: 2024/07/05 19:54:25 by maiboyer ### ########.fr */
|
||||||
/* */
|
/* */
|
||||||
/* ************************************************************************** */
|
/* ************************************************************************** */
|
||||||
|
|
||||||
|
|
@ -16,6 +16,10 @@
|
||||||
# include "me/types.h"
|
# include "me/types.h"
|
||||||
# include <stdarg.h>
|
# include <stdarg.h>
|
||||||
|
|
||||||
|
# ifndef FS_H
|
||||||
|
typedef struct s_fd t_fd;
|
||||||
|
# endif
|
||||||
|
|
||||||
typedef struct s_fprintf_arg
|
typedef struct s_fprintf_arg
|
||||||
{
|
{
|
||||||
t_usize total_print;
|
t_usize total_print;
|
||||||
|
|
@ -85,4 +89,17 @@ t_usize me_vprintf(t_const_str fmt, va_list *args);
|
||||||
/// @return the number of characters printed
|
/// @return the number of characters printed
|
||||||
t_usize me_veprintf(t_const_str fmt, va_list *args);
|
t_usize me_veprintf(t_const_str fmt, va_list *args);
|
||||||
|
|
||||||
|
|
||||||
|
/// @brief Print a formatted string to the given fd
|
||||||
|
/// @param fmt the format string
|
||||||
|
/// @param ... the arguments to format
|
||||||
|
/// @return the number of characters printed
|
||||||
|
t_usize me_printf_fd(t_fd *, t_const_str fmt, ...);
|
||||||
|
|
||||||
|
/// @brief Print a formatted string to the given fd
|
||||||
|
/// @param fmt the format string
|
||||||
|
/// @param args the arguments to format as a va_list
|
||||||
|
/// @return the number of characters printed
|
||||||
|
t_usize me_vprintf_fd(t_fd *, t_const_str fmt, va_list *args);
|
||||||
|
|
||||||
#endif
|
#endif
|
||||||
|
|
|
||||||
47
stdme/src/printf/printf_fd.c
Normal file
47
stdme/src/printf/printf_fd.c
Normal file
|
|
@ -0,0 +1,47 @@
|
||||||
|
|
||||||
|
/* ************************************************************************** */
|
||||||
|
/* */
|
||||||
|
/* ::: :::::::: */
|
||||||
|
/* printf_fd.c :+: :+: :+: */
|
||||||
|
/* +:+ +:+ +:+ */
|
||||||
|
/* By: maiboyer <maiboyer@student.42.fr> +#+ +:+ +#+ */
|
||||||
|
/* +#+#+#+#+#+ +#+ */
|
||||||
|
/* Created: 2024/07/05 19:55:09 by maiboyer #+# #+# */
|
||||||
|
/* Updated: 2024/07/05 19:57:23 by maiboyer ### ########.fr */
|
||||||
|
/* */
|
||||||
|
/* ************************************************************************** */
|
||||||
|
|
||||||
|
#include "me/fs/fs.h"
|
||||||
|
#include "me/printf/formatter/utils.h"
|
||||||
|
#include "me/printf/printf.h"
|
||||||
|
#include "me/types.h"
|
||||||
|
#include <stdarg.h>
|
||||||
|
|
||||||
|
void me_printf_write(t_const_str to_write, t_usize to_write_len, void *p_args);
|
||||||
|
|
||||||
|
t_usize me_vprintf_fd(t_fd *fd, t_const_str fmt, va_list *args)
|
||||||
|
{
|
||||||
|
t_fprintf_arg passthru;
|
||||||
|
|
||||||
|
passthru = (t_fprintf_arg){
|
||||||
|
.fd = fd->fd,
|
||||||
|
.total_print = 0,
|
||||||
|
};
|
||||||
|
me_printf_str_inner(fmt, &me_printf_write, args, (void *)&passthru);
|
||||||
|
return (passthru.total_print);
|
||||||
|
}
|
||||||
|
|
||||||
|
t_usize me_printf_fd(t_fd *fd, t_const_str fmt, ...)
|
||||||
|
{
|
||||||
|
va_list args;
|
||||||
|
t_fprintf_arg passthru;
|
||||||
|
|
||||||
|
passthru = (t_fprintf_arg){
|
||||||
|
.fd = fd->fd,
|
||||||
|
.total_print = 0,
|
||||||
|
};
|
||||||
|
va_start(args, fmt);
|
||||||
|
me_printf_str_inner(fmt, &me_printf_write, &args, (void *)&passthru);
|
||||||
|
va_end(args);
|
||||||
|
return (passthru.total_print);
|
||||||
|
}
|
||||||
Loading…
Add table
Add a link
Reference in a new issue