parser-priv.h

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Author : Ran Benita
Date : 2012-08-12 11:40:02
Hash : a392d268
Message : Replace flex scanner with a hand-written one The scanner is very similar in structure to the one in xkbcomp/rules.c. It avoids copying and has nicer error reporting. It uses gperf to generate a hashtable for the keywords, which gives a nice speed boost (compared to the naive strcasecmp method at least). But since there's hardly a reason to regenerate it every time and require people to install gperf, the output (keywords.c) is added here as well. Here are some stats from test/rulescomp: Before: compiled 1000 keymaps in 4.052939625s ==22063== total heap usage: 101,101 allocs, 101,101 frees, 11,840,834 bytes allocated After: compiled 1000 keymaps in 3.519665434s ==26505== total heap usage: 99,945 allocs, 99,945 frees, 7,033,608 bytes allocated Signed-off-by: Ran Benita <ran234@gmail.com>

src/xkbcomp/parser-priv.h

/************************************************************
 * Copyright (c) 1994 by Silicon Graphics Computer Systems, Inc.
 *
 * Permission to use, copy, modify, and distribute this
 * software and its documentation for any purpose and without
 * fee is hereby granted, provided that the above copyright
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 * of the software without specific prior written permission.
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#ifndef XKBCOMP_PARSER_PRIV_H
#define XKBCOMP_PARSER_PRIV_H

struct scanner;
struct parser_param;

#include "parser.h"

int
scanner_error(YYLTYPE *yylloc, struct scanner *scanner, const char *msg);

int
_xkbcommon_lex(YYSTYPE *yylval, YYLTYPE *yylloc, struct scanner *scanner);

XkbFile *
parse(struct xkb_context *ctx, void *scanner, const char *map);

int
keyword_to_token(const char *string);

#endif

kc3-lang/libxkbcommon/src/xkbcomp/parser-priv.h

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kc3-lang/libxkbcommon /src/xkbcomp/parser-priv.h