diff options
Diffstat (limited to 'Source/Swig/scanner.c')
-rw-r--r-- | Source/Swig/scanner.c | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/Source/Swig/scanner.c b/Source/Swig/scanner.c index 181d9aa74..a32828b58 100644 --- a/Source/Swig/scanner.c +++ b/Source/Swig/scanner.c @@ -1547,6 +1547,114 @@ int Scanner_skip_balanced(Scanner * s, int startchar, int endchar) { } /* ----------------------------------------------------------------------------- + * Scanner_get_raw_text_balanced() + * + * Returns raw text between 2 braces, does not change scanner state in any way + * ----------------------------------------------------------------------------- */ + +String *Scanner_get_raw_text_balanced(Scanner *s, int startchar, int endchar) { + String *result = 0; + char c; + int old_line = s->line; + String *old_text = Copy(s->text); + int position = Tell(s->str); + + int num_levels = 1; + int state = 0; + char temp[2] = { 0, 0 }; + temp[0] = (char) startchar; + Clear(s->text); + Setfile(s->text, Getfile(s->str)); + Setline(s->text, s->line); + Append(s->text, temp); + while (num_levels > 0) { + if ((c = nextchar(s)) == 0) { + Clear(s->text); + Append(s->text, old_text); + Delete(old_text); + s->line = old_line; + return 0; + } + switch (state) { + case 0: + if (c == startchar) + num_levels++; + else if (c == endchar) + num_levels--; + else if (c == '/') + state = 10; + else if (c == '\"') + state = 20; + else if (c == '\'') + state = 30; + break; + case 10: + if (c == '/') + state = 11; + else if (c == '*') + state = 12; + else if (c == startchar) { + state = 0; + num_levels++; + } + else + state = 0; + break; + case 11: + if (c == '\n') + state = 0; + else + state = 11; + break; + case 12: /* first character inside C comment */ + if (c == '*') + state = 14; + else + state = 13; + break; + case 13: + if (c == '*') + state = 14; + break; + case 14: /* possible end of C comment */ + if (c == '*') + state = 14; + else if (c == '/') + state = 0; + else + state = 13; + break; + case 20: + if (c == '\"') + state = 0; + else if (c == '\\') + state = 21; + break; + case 21: + state = 20; + break; + case 30: + if (c == '\'') + state = 0; + else if (c == '\\') + state = 31; + break; + case 31: + state = 30; + break; + default: + break; + } + } + Seek(s->str, position, SEEK_SET); + result = Copy(s->text); + Clear(s->text); + Append(s->text, old_text); + Delete(old_text); + s->line = old_line; + return result; +} +/* ----------------------------------------------------------------------------- * Scanner_isoperator() * * Returns 0 or 1 depending on whether or not a token corresponds to a C/C++ |