264 lines
10 KiB
C
264 lines
10 KiB
C
/* -*-C-*-
|
|
* Lexical scanner for command line parsing
|
|
*
|
|
* Copyright 1993 Eric Youngdale
|
|
* 2000 Eric Pouech
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
|
|
*/
|
|
|
|
%option noinput nounput interactive 8bit prefix="dbg_"
|
|
|
|
%{
|
|
#include "config.h"
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <stdarg.h>
|
|
|
|
#ifndef HAVE_UNISTD_H
|
|
#define YY_NO_UNISTD_H
|
|
#endif
|
|
|
|
#include "debugger.h"
|
|
#include "dbg.tab.h"
|
|
|
|
#undef YY_INPUT
|
|
|
|
static char** local_lexemes /* = NULL */;
|
|
static int next_lexeme /* = 0 */;
|
|
static int alloc_lexeme /* = 0 */;
|
|
|
|
char* lexeme_alloc_size(int size)
|
|
{
|
|
assert(0 <= next_lexeme && next_lexeme < alloc_lexeme + 1);
|
|
if (next_lexeme >= alloc_lexeme)
|
|
{
|
|
alloc_lexeme += 32;
|
|
local_lexemes = dbg_heap_realloc(local_lexemes, alloc_lexeme * sizeof(local_lexemes[0]));
|
|
assert(local_lexemes);
|
|
}
|
|
return local_lexemes[next_lexeme++] = HeapAlloc(GetProcessHeap(), 0, size + 1);
|
|
}
|
|
|
|
static char* lexeme_alloc(const char* lexeme)
|
|
{
|
|
char* ptr = lexeme_alloc_size(strlen(lexeme) + 1);
|
|
return strcpy(ptr, lexeme);
|
|
}
|
|
|
|
void lexeme_flush(void)
|
|
{
|
|
while (--next_lexeme >= 0) HeapFree(GetProcessHeap(), 0, local_lexemes[next_lexeme]);
|
|
next_lexeme = 0;
|
|
}
|
|
|
|
static int read_input(const char* pfx, char* buf, int size)
|
|
{
|
|
int len;
|
|
static char* last_line = NULL;
|
|
static size_t last_line_idx = 0;
|
|
|
|
/* try first to fetch the remaining of an existing line */
|
|
if (last_line_idx == 0)
|
|
{
|
|
char* tmp = NULL;
|
|
/* no remaining chars to be read from last line, grab a brand new line up to '\n' */
|
|
lexeme_flush();
|
|
len = input_fetch_entire_line(pfx, &tmp);
|
|
if (len < 0) return 0; /* eof */
|
|
/* FIXME: should have a pair of buffers, and switch between the two, instead of
|
|
* reallocating a new one for each line
|
|
*/
|
|
if (last_line && (len == 0 || (len == 1 && tmp[0] == '\n') || (len == 2 && tmp[0] == '\r' && tmp[1] == '\n')))
|
|
{
|
|
HeapFree(GetProcessHeap(), 0, tmp);
|
|
}
|
|
else
|
|
{
|
|
HeapFree(GetProcessHeap(), 0, last_line);
|
|
last_line = tmp;
|
|
}
|
|
}
|
|
|
|
len = min(strlen(last_line + last_line_idx), size - 1);
|
|
memcpy(buf, last_line + last_line_idx, len);
|
|
buf[len] = '\0';
|
|
if ((last_line_idx += len) >= strlen(last_line))
|
|
last_line_idx = 0;
|
|
return len;
|
|
}
|
|
|
|
#define YY_INPUT(buf,result,max_size) \
|
|
if ((result = read_input("Wine-dbg>", buf, max_size)) < 0) \
|
|
YY_FATAL_ERROR("read_input in flex scanner failed");
|
|
|
|
static int syntax_error;
|
|
%}
|
|
|
|
DIGIT [0-9]
|
|
HEXDIGIT [0-9a-fA-F]
|
|
FORMAT [ubcdgiswxa]
|
|
IDENTIFIER [_a-zA-Z~?][_a-zA-Z0-9~?@]*
|
|
PATHNAME [\\/_a-zA-Z0-9\.~@][\\/\-_a-zA-Z0-9\.~@]*
|
|
STRING \"[^\n"]+\"
|
|
|
|
%s FORMAT_EXPECTED
|
|
%s INFO_CMD
|
|
%s HELP_CMD
|
|
%s BD_CMD
|
|
%s LOCAL_CMD
|
|
%s SHOW_CMD
|
|
%s MODE_CMD
|
|
%s MAINT_CMD
|
|
%s NOCMD
|
|
%s PATH_ACCEPTED
|
|
|
|
%x PATH_EXPECTED
|
|
%x ASTRING_EXPECTED
|
|
%x NOPROCESS
|
|
%%
|
|
/* set to special state when no process is loaded. */
|
|
if (!dbg_num_processes() && YYSTATE == INITIAL) {BEGIN(NOPROCESS);}
|
|
|
|
<<EOF>> { return tEOF; }
|
|
<*>\n { BEGIN(INITIAL); syntax_error = 0; return tEOL; }
|
|
/* Indicates end of command. Reset state. */
|
|
|
|
"||" { return OP_LOR; }
|
|
"&&" { return OP_LAND; }
|
|
"==" { return OP_EQ; }
|
|
"!=" { return OP_NE; }
|
|
"<=" { return OP_LE; }
|
|
">=" { return OP_GE; }
|
|
"<<" { return OP_SHL; }
|
|
">>" { return OP_SHR; }
|
|
"->" { return OP_DRF; }
|
|
"::" { return OP_SCOPE; }
|
|
"[" { return *yytext; }
|
|
"]" { return *yytext; }
|
|
|
|
"0x"{HEXDIGIT}+ { sscanf(yytext, "%lx", &dbg_lval.integer); return tNUM; }
|
|
{DIGIT}+ { sscanf(yytext, "%ld", &dbg_lval.integer); return tNUM; }
|
|
|
|
<FORMAT_EXPECTED>"/"{DIGIT}+{FORMAT} { char* last;
|
|
dbg_lval.integer = strtol(yytext+1, &last, 0) << 8;
|
|
dbg_lval.integer |= *last;
|
|
return tFORMAT; }
|
|
|
|
<FORMAT_EXPECTED>"/"{FORMAT} { dbg_lval.integer = (1 << 8) | yytext[1]; return tFORMAT; }
|
|
|
|
{STRING} { dbg_lval.string = lexeme_alloc(yytext + 1); dbg_lval.string[strlen(dbg_lval.string) - 1] = '\0'; return tSTRING; }
|
|
<ASTRING_EXPECTED>[^\n]+ { char* p = yytext; while (*p == ' ' || *p == '\t') p++;
|
|
dbg_lval.string = lexeme_alloc(p); return tSTRING; }
|
|
|
|
<INITIAL,NOPROCESS>info|inf|in { BEGIN(INFO_CMD); return tINFO; }
|
|
<INITIAL>up { BEGIN(NOCMD); return tUP; }
|
|
<INITIAL>down|dow|do { BEGIN(NOCMD); return tDOWN; }
|
|
<INITIAL,INFO_CMD>frame|fram|fra|fr { BEGIN(NOCMD); return tFRAME; }
|
|
<INITIAL>list|lis|li|l { BEGIN(PATH_ACCEPTED); return tLIST; }
|
|
<INITIAL>enable|enabl|enab|ena { BEGIN(BD_CMD); return tENABLE;}
|
|
<INITIAL>disable|disabl|disab|disa|dis { BEGIN(BD_CMD); return tDISABLE; }
|
|
<INITIAL>disassemble|disassembl|disassemb|disassem|disasse|disass|disas { BEGIN(NOCMD); return tDISASSEMBLE; }
|
|
<INITIAL>locally|local { BEGIN(LOCAL_CMD); return tLOCAL; }
|
|
<INITIAL,LOCAL_CMD>display|displa|displ|disp { BEGIN(FORMAT_EXPECTED); return tDISPLAY; }
|
|
<INFO_CMD,BD_CMD>display|displa|displ|disp|dis|di|d { BEGIN(NOCMD); return tDISPLAY; }
|
|
<INITIAL>undisplay|undispla|undispl|undisp|undis|undi|und { BEGIN(NOCMD); return tUNDISPLAY; }
|
|
<INITIAL>delete|delet|dele|del { BEGIN(BD_CMD); return tDELETE; }
|
|
<INITIAL,NOPROCESS>quit|qui|qu|q { BEGIN(NOCMD); return tQUIT; }
|
|
<INITIAL>set|se { BEGIN(NOCMD); return tSET; }
|
|
<INITIAL>x { BEGIN(FORMAT_EXPECTED); return tEXAM; }
|
|
<INITIAL,NOPROCESS>help|hel|he|"?" { BEGIN(HELP_CMD); return tHELP; }
|
|
|
|
<INITIAL,NOPROCESS>backtrace|backtrac|backtra|backt|back|bac|ba|bt { BEGIN(NOCMD); return tBACKTRACE; }
|
|
<INITIAL,NOPROCESS>where|wher|whe { BEGIN(NOCMD); return tBACKTRACE; }
|
|
|
|
<INITIAL>cont|con|co|c { BEGIN(NOCMD); return tCONT; }
|
|
<INITIAL>pass|pas|pa { BEGIN(NOCMD); return tPASS; }
|
|
<INITIAL>condition|conditio|conditi|condit|condi|cond { BEGIN(NOCMD); return tCOND; }
|
|
<INITIAL>step|ste|st|s { BEGIN(NOCMD); return tSTEP; }
|
|
<INITIAL>next|nex|ne|n { BEGIN(NOCMD); return tNEXT; }
|
|
<INITIAL>stepi|si { BEGIN(NOCMD); return tSTEPI; }
|
|
<INITIAL>nexti|ni { BEGIN(NOCMD); return tNEXTI; }
|
|
<INITIAL>finish|finis|fini|fin|fi { BEGIN(NOCMD); return tFINISH; }
|
|
|
|
<INITIAL>abort|abor|abo { BEGIN(NOCMD); return tABORT; }
|
|
<INITIAL>print|prin|pri|pr|p { BEGIN(FORMAT_EXPECTED); return tPRINT; }
|
|
|
|
<INITIAL>show|sho|sh { BEGIN(SHOW_CMD); return tSHOW; }
|
|
<INITIAL,NOPROCESS>source|sourc|sour|src { BEGIN(PATH_EXPECTED); return tSOURCE; }
|
|
<INITIAL>symbolfile|symbols|symbol|sf { BEGIN(PATH_EXPECTED); return tSYMBOLFILE; }
|
|
|
|
<INITIAL,INFO_CMD,BD_CMD>break|brea|bre|br|b { BEGIN(NOCMD); return tBREAK; }
|
|
<INITIAL,INFO_CMD,BD_CMD>hbreak|hbrea|hbre|hbr|hb { BEGIN(NOCMD); return tHBREAK; }
|
|
<INITIAL>watch|watc|wat { BEGIN(NOCMD); return tWATCH; }
|
|
<INITIAL>whatis|whati|what { BEGIN(NOCMD); return tWHATIS; }
|
|
<INITIAL,NOPROCESS>run|ru|r { BEGIN(ASTRING_EXPECTED); return tRUN;}
|
|
<INITIAL>detach|detac|deta|det { BEGIN(NOCMD); return tDETACH; }
|
|
<INITIAL>kill|kil|ki|k { BEGIN(NOCMD); return tKILL; }
|
|
<INITIAL,NOPROCESS>maintenance|maint { BEGIN(MAINT_CMD); return tMAINTENANCE; }
|
|
<INITIAL>minidump|mdmp { BEGIN(PATH_EXPECTED); return tMINIDUMP; }
|
|
<INITIAL>echo { BEGIN(ASTRING_EXPECTED); return tECHO; }
|
|
<NOPROCESS>attach|attac|atta|att { BEGIN(NOCMD); return tATTACH; }
|
|
<INFO_CMD>share|shar|sha { return tSHARE; }
|
|
<MAINT_CMD>module|modul|mod { BEGIN(ASTRING_EXPECTED); return tMODULE; }
|
|
<INFO_CMD>locals|local|loca|loc { return tLOCAL; }
|
|
<INFO_CMD>class|clas|cla { return tCLASS; }
|
|
<INFO_CMD>process|proces|proce|proc { return tPROCESS; }
|
|
<INFO_CMD>threads|thread|threa|thre|thr|th { return tTHREAD; }
|
|
<INFO_CMD>exception|except|exc|ex { return tEXCEPTION; }
|
|
<INFO_CMD>registers|regs|reg|re { return tREGS; }
|
|
<INFO_CMD>allregs|allreg|allre { return tALLREGS; }
|
|
<INFO_CMD>"all-registers"|"all-regs"|"all-reg"|"all-re" { return tALLREGS; }
|
|
<INFO_CMD>segments|segment|segm|seg|se { return tSEGMENTS; }
|
|
<INFO_CMD>stack|stac|sta|st { return tSTACK; }
|
|
<INFO_CMD>symbol|symbo|symb|sym { BEGIN(ASTRING_EXPECTED); return tSYMBOL; }
|
|
<INFO_CMD>maps|map { return tMAPS; }
|
|
<INFO_CMD>window|windo|wind|win|wnd { return tWND; }
|
|
<HELP_CMD>info|inf|in { return tINFO; }
|
|
<MAINT_CMD>type { return tTYPE; }
|
|
|
|
<INITIAL,SHOW_CMD>directories|directorie|directori|director|directo|direct|direc|direc|dir {
|
|
BEGIN(PATH_EXPECTED); return tDIR; }
|
|
|
|
char { return tCHAR; }
|
|
short { return tSHORT; }
|
|
int { return tINT; }
|
|
long { return tLONG; }
|
|
float { return tFLOAT; }
|
|
double { return tDOUBLE; }
|
|
unsigned { return tUNSIGNED; }
|
|
signed { return tSIGNED; }
|
|
struct { return tSTRUCT; }
|
|
union { return tUNION; }
|
|
enum { return tENUM; }
|
|
all { return tALL; }
|
|
|
|
{IDENTIFIER} { dbg_lval.string = lexeme_alloc(yytext); return tIDENTIFIER; }
|
|
"$"{IDENTIFIER} { dbg_lval.string = lexeme_alloc(yytext+1); return tINTVAR; }
|
|
|
|
<PATH_EXPECTED,PATH_ACCEPTED>{PATHNAME} { dbg_lval.string = lexeme_alloc(yytext); return tPATH; }
|
|
|
|
[-+<=>|&^()*/%:!~,\.] { return *yytext; }
|
|
|
|
<*>[ \t\r]+ /* Eat up whitespace and DOS LF */
|
|
|
|
<NOPROCESS>. { BEGIN(ASTRING_EXPECTED); yyless(0); return tNOPROCESS;}
|
|
<*>. { if (syntax_error == 0) { syntax_error++; dbg_printf("Syntax Error (%s)\n", yytext); } }
|
|
%%
|
|
|
|
#ifndef dbg_wrap
|
|
int dbg_wrap(void) { return 1; }
|
|
#endif
|