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Updated parser/src/scanner.c to be splitted

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Maieul BOYER 2024-09-02 17:43:53 +02:00
parent 78a595ef60
commit b2440780fb
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11 changed files with 415 additions and 363 deletions
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133
parser/src/scanner/scan_varname.c Normal file
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* scan_varname.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: maiboyer <maiboyer@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2024/09/02 17:26:05 by maiboyer #+# #+# */
/* Updated: 2024/09/02 17:28:10 by maiboyer ### ########.fr */
/* */
/* ************************************************************************** */
#include "me/char/char.h"
#include "parser/inner/scanner.h"
bool scan_varname(t_scanner *scanner, TSLexer *lexer, const bool *valid_symbols)
{
while (true)
{
if ((lexer->lookahead == ' ' || lexer->lookahead == '\t' || lexer->lookahead == '\r' ||
(lexer->lookahead == '\n' && !valid_symbols[NEWLINE])) &&
!valid_symbols[EXPANSION_WORD])
lexer->advance(lexer, true);
else if (lexer->lookahead == '\\')
{
lexer->advance(lexer, true);
if (lexer->eof(lexer))
{
lexer->mark_end(lexer);
lexer->result_symbol = VARIABLE_NAME;
return (true);
}
if (lexer->lookahead == '\r')
lexer->advance(lexer, true);
if (lexer->lookahead == '\n')
lexer->advance(lexer, true);
else
{
if (lexer->lookahead == '\\' && valid_symbols[EXPANSION_WORD])
return (scan_expansion_word(scanner, lexer, valid_symbols));
return (false);
}
}
else
break;
}
// no '*', '@', '?', '-', '$', '0', '_'
if (!valid_symbols[EXPANSION_WORD] && (lexer->lookahead == '*' || lexer->lookahead == '@' || lexer->lookahead == '?' ||
lexer->lookahead == '-' || lexer->lookahead == '0' || lexer->lookahead == '_'))
{
lexer->mark_end(lexer);
lexer->advance(lexer, false);
if (lexer->lookahead == '=' || lexer->lookahead == '[' || lexer->lookahead == ':' || lexer->lookahead == '-' ||
lexer->lookahead == '%' || lexer->lookahead == '#' || lexer->lookahead == '/')
return false;
if (valid_symbols[EXTGLOB_PATTERN] && me_isspace(lexer->lookahead))
{
lexer->mark_end(lexer);
lexer->result_symbol = EXTGLOB_PATTERN;
return true;
}
}
if (valid_symbols[HEREDOC_ARROW] && lexer->lookahead == '<')
{
lexer->advance(lexer, false);
if (lexer->lookahead == '<')
{
lexer->advance(lexer, false);
t_heredoc heredoc = heredoc_new();
vec_heredoc_push(&scanner->heredocs, heredoc);
lexer->result_symbol = HEREDOC_ARROW;
return (true);
}
return (false);
}
bool is_number = true;
if (me_isdigit(lexer->lookahead))
lexer->advance(lexer, false);
else if (me_isalpha(lexer->lookahead) || lexer->lookahead == '_')
{
is_number = false;
lexer->advance(lexer, false);
}
else
{
if (lexer->lookahead == '{')
return (false);
if (valid_symbols[EXPANSION_WORD])
return (scan_expansion_word(scanner, lexer, valid_symbols));
return (false);
}
while (true)
{
if (me_isdigit(lexer->lookahead))
lexer->advance(lexer, false);
else if (me_isalpha(lexer->lookahead) || lexer->lookahead == '_')
is_number = (lexer->advance(lexer, false), false);
else
break;
}
if (is_number && valid_symbols[FILE_DESCRIPTOR] && (lexer->lookahead == '>' || lexer->lookahead == '<'))
return (lexer->result_symbol = FILE_DESCRIPTOR, true);
if (valid_symbols[VARIABLE_NAME])
{
if (lexer->lookahead == '+')
{
lexer->mark_end(lexer);
lexer->advance(lexer, false);
if (lexer->lookahead == '=' || lexer->lookahead == ':')
return (lexer->result_symbol = VARIABLE_NAME, true);
return false;
}
if (lexer->lookahead == '/')
return false;
if (lexer->lookahead == '=' || lexer->lookahead == '[' || (lexer->lookahead == ':' && !valid_symbols[OPENING_PAREN]) ||
lexer->lookahead == '%' || (lexer->lookahead == '#' && !is_number) || lexer->lookahead == '@' || (lexer->lookahead == '-'))
return (lexer->mark_end(lexer), lexer->result_symbol = VARIABLE_NAME, true);
if (lexer->lookahead == '?')
{
lexer->mark_end(lexer);
lexer->advance(lexer, false);
lexer->result_symbol = VARIABLE_NAME;
return (me_isalpha(lexer->lookahead));
}
}
return (false);
}