| /* -*-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>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 |
