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Support text type escape sequences \b and \s.

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This commit is contained in:
Dale Weiler 2014-10-17 19:37:01 -04:00
parent 859e9fe3da
commit 15b31e7dc5
1 changed files with 17 additions and 10 deletions
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27
lexer.c
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@ -681,7 +681,7 @@ static bool lex_finish_frames(lex_file *lex)
static int GMQCC_WARN lex_finish_string(lex_file *lex, int quote)
{
utf8ch_t chr = 0;
int ch = 0;
int ch = 0, texttype = 0;
int nextch;
bool hex;
bool oct;
@ -716,13 +716,12 @@ static int GMQCC_WARN lex_finish_string(lex_file *lex, int quote)
case '\\': break;
case '\'': break;
case '"': break;
case 'a': ch = '\a'; break;
case 'b': ch = '\b'; break;
case 'r': ch = '\r'; break;
case 'n': ch = '\n'; break;
case 't': ch = '\t'; break;
case 'f': ch = '\f'; break;
case 'v': ch = '\v'; break;
case 'a': ch = '\a'; break;
case 'r': ch = '\r'; break;
case 'n': ch = '\n'; break;
case 't': ch = '\t'; break;
case 'f': ch = '\f'; break;
case 'v': ch = '\v'; break;
case 'x':
case 'X':
/* same procedure as in fteqcc */
@ -825,7 +824,15 @@ static int GMQCC_WARN lex_finish_string(lex_file *lex, int quote)
else
ch = chr;
break;
case '\n': ch = '\n'; break;
/* high bit text */
case 'b': case 's':
texttype ^= 128;
continue;
case '\n':
ch = '\n';
break;
default:
lexwarn(lex, WARN_UNKNOWN_CONTROL_SEQUENCE, "unrecognized control sequence: \\%c", ch);
@ -833,7 +840,7 @@ static int GMQCC_WARN lex_finish_string(lex_file *lex, int quote)
lex_tokench(lex, '\\');
}
/* add the character finally */
lex_tokench(lex, ch);
lex_tokench(lex, ch | texttype);
}
else
lex_tokench(lex, ch);