diff options
Diffstat (limited to 'src/xkbcomp/scanner.l')
| -rw-r--r-- | src/xkbcomp/scanner.l | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/src/xkbcomp/scanner.l b/src/xkbcomp/scanner.l index 5ccf3e9..f30462d 100644 --- a/src/xkbcomp/scanner.l +++ b/src/xkbcomp/scanner.l @@ -267,6 +267,38 @@ XkbParseString(struct xkb_context *ctx, const char *string, return xkb_file; } +/* + * yy_scan_buffer() requires the last two bytes of \buf to be 0. These two bytes + * are not scanned. Other zero bytes in the buffer are scanned normally, though. + * Due to these terminating zeroes, \length must be greater than 2. + * Furthermore, the buffer must be writable and you cannot make any assumptions + * about it after the scanner finished. + * All this must be guaranteed by the caller of this function! + */ +XkbFile * +XkbParseBuffer(struct xkb_context *ctx, char *buf, size_t length, + const char *file_name) +{ + yyscan_t scanner; + struct scanner_extra extra; + YY_BUFFER_STATE state; + XkbFile *xkb_file; + + if (!init_scanner(&scanner, &extra, ctx, file_name)) + return NULL; + + xkb_file = NULL; + state = yy_scan_buffer(buf, length, scanner); + if (state) { + xkb_file = parse(ctx, scanner, NULL); + yy_delete_buffer(state, scanner); + } + + clear_scanner(scanner); + + return xkb_file; +} + XkbFile * XkbParseFile(struct xkb_context *ctx, FILE *file, const char *file_name, const char *map) |