diff options
Diffstat (limited to 'doc/flex.info-3')
| -rw-r--r-- | doc/flex.info-3 | 32 |
1 files changed, 21 insertions, 11 deletions
diff --git a/doc/flex.info-3 b/doc/flex.info-3 index a6cc465..7884ba1 100644 --- a/doc/flex.info-3 +++ b/doc/flex.info-3 @@ -1,4 +1,4 @@ -This is flex.info, produced by makeinfo version 4.3d from flex.texi. +This is flex.info, produced by makeinfo version 4.5 from flex.texi. INFO-DIR-SECTION Programming START-INFO-DIR-ENTRY @@ -612,18 +612,18 @@ scanner classes; you must use `%pointer' (the default). If you want to create multiple (different) lexer classes, you use the `-P' flag (or the `prefix=' option) to rename each `yyFlexLexer' to -some other `xxFlexLexer'. You then can include `FlexLexer.h>' in your +some other `xxFlexLexer'. You then can include `<FlexLexer.h>' in your other sources once per lexer class, first renaming `yyFlexLexer' as follows: #undef yyFlexLexer #define yyFlexLexer xxFlexLexer - #include <FflexLexer.h> + #include <FlexLexer.h> #undef yyFlexLexer #define yyFlexLexer zzFlexLexer - #include FlexLexer.h> + #include <FlexLexer.h> if, for example, you used `%option prefix="xx"' for one of your scanners and `%option prefix="zz"' for the other. @@ -1217,6 +1217,10 @@ exceptions: `flex' being used is a beta version, then the symbol `FLEX_BETA' is defined. + * The symbols `[[' and `]]' in the code sections of the input may + conflict with the m4 delimiters. *Note M4 Dependency::. + + The following `flex' features are not included in `lex' or the POSIX specification: @@ -1312,13 +1316,19 @@ all memory when you call `yylex_destroy' *Note faq-memory-leak::. will grow if necessary, doubling the size each time. Flex frees this memory when you call yylex_destroy(). The default size of this buffer (16384 bytes) is almost always too large. The ideal - size for this buffer is the length of the longest token expected. - Flex will allocate a few extra bytes for housekeeping. - -16kb for the REJECT state. This will only be allocated if you use REJECT. - The size is the same as the input buffer, so if you override the - size of the input buffer, then you automatically override the size - of this buffer as well. + size for this buffer is the length of the longest token expected, + in bytes, plus a little more. Flex will allocate a few extra + bytes for housekeeping. Currently, to override the size of the + input buffer you must `#define YY_BUF_SIZE' to whatever number of + bytes you want. We don't plan to change this in the near future, + but we reserve the right to do so if we ever add a more robust + memory management API. + +64kb for the REJECT state. This will only be allocated if you use REJECT. + The size is the large enough to hold the same number of states as + characters in the input buffer. If you override the size of the + input buffer (via `YY_BUF_SIZE'), then you automatically override + the size of this buffer as well. 100 bytes for the start condition stack. Flex allocates memory for the start condition stack. This is the |