| /* -*-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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| */ |
| |
| %{ |
| #include <stdlib.h> |
| #include <string.h> |
| #include "winbase.h" |
| #include "wincon.h" |
| #include "debugger.h" |
| #include "y.tab.h" |
| |
| #undef YY_INPUT |
| |
| HANDLE DEBUG_hParserInput; |
| HANDLE DEBUG_hParserOutput; |
| |
| static int DEBUG_FetchFromLine(const char* pfx, char* buf, int size); |
| |
| #define YY_INPUT(buf,result,max_size) \ |
| if ( (result = DEBUG_FetchFromLine("Wine-dbg>", buf, max_size)) < 0 ) \ |
| YY_FATAL_ERROR( "ReadLine() in flex scanner failed" ); |
| |
| #define YY_NO_UNPUT |
| |
| static int syntax_error; |
| %} |
| |
| DIGIT [0-9] |
| HEXDIGIT [0-9a-fA-F] |
| FORMAT [ubcdgiswx] |
| IDENTIFIER [_a-zA-Z~][_a-zA-Z0-9~@]* |
| PATHNAME [/_a-zA-Z\.~][/_a-zA-Z0-9\.~@]* |
| STRING \"[^\n"]+\" |
| |
| %s FORMAT_EXPECTED |
| %s PATH_EXPECTED |
| %s INFO_CMD |
| %s HELP_CMD |
| %s DEL_CMD |
| %s WALK_CMD |
| %s SHOW_CMD |
| %s MODE_CMD |
| %s NOCMD |
| |
| %x ASTRING_EXPECTED |
| %x NOPROCESS |
| %% |
| /* set to special state when no process is loaded. */ |
| if (!DEBUG_CurrProcess && 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 *yytext; } |
| "[" { return *yytext; } |
| "]" { return *yytext; } |
| |
| "0x"{HEXDIGIT}+ { sscanf(yytext, "%x", &yylval.integer); return tNUM; } |
| {DIGIT}+ { sscanf(yytext, "%d", &yylval.integer); return tNUM; } |
| |
| <FORMAT_EXPECTED>"/"{DIGIT}+{FORMAT} { char* last; |
| yylval.integer = strtol( yytext+1, &last, 0 ) << 8; |
| yylval.integer |= *last; |
| return tFORMAT; } |
| |
| <FORMAT_EXPECTED>"/"{FORMAT} { yylval.integer = (1 << 8) | yytext[1]; return tFORMAT; } |
| |
| {STRING} { yylval.string = DEBUG_MakeSymbol(yytext); return tSTRING; } |
| <ASTRING_EXPECTED>[^\n]+ { char* p = yytext; while (*p == ' ' || *p == '\t') p++; |
| yylval.string = DEBUG_MakeSymbol(p); return tSTRING; } |
| |
| <INITIAL>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_EXPECTED); return tLIST; } |
| <INITIAL>enable|enabl|enab|ena { BEGIN(NOCMD); return tENABLE;} |
| <INITIAL>disable|disabl|disab|disa|dis { BEGIN(NOCMD); return tDISABLE; } |
| <INITIAL>disassemble|disassembl|disassemb|disassem|disasse|disass|disas { BEGIN(NOCMD); return tDISASSEMBLE; } |
| <INITIAL,INFO_CMD,DEL_CMD>display|displa|displ|disp { BEGIN(FORMAT_EXPECTED); return tDISPLAY; } |
| <INITIAL>undisplay|undispla|undispl|undisp|undis|undi|und { BEGIN(NOCMD); return tUNDISPLAY; } |
| <INITIAL>delete|delet|dele|del { BEGIN(DEL_CMD); return tDELETE; } |
| <INITIAL,NOPROCESS>quit|qui|qu|q { BEGIN(NOCMD); return tQUIT; } |
| <INITIAL>set|se { BEGIN(NOCMD); return tSET; } |
| <INITIAL,NOPROCESS>walk|w { BEGIN(WALK_CMD); return tWALK; } |
| <INITIAL>x { BEGIN(FORMAT_EXPECTED); return tEXAM; } |
| <INITIAL,NOPROCESS>help|hel|he|"?" { BEGIN(HELP_CMD); return tHELP; } |
| |
| <INITIAL>backtrace|backtrac|backtra|backt|back|bac|ba|bt { BEGIN(NOCMD); return tBACKTRACE; } |
| <INITIAL>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>mode { BEGIN(MODE_CMD); return tMODE; } |
| <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,DEL_CMD>break|brea|bre|br|b { BEGIN(NOCMD); return tBREAK; } |
| <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; } |
| <NOPROCESS>attach|attac|atta|att { BEGIN(NOCMD); return tATTACH; } |
| <INFO_CMD>share|shar|sha { return tSHARE; } |
| <INFO_CMD>locals|local|loca|loc { return tLOCAL; } |
| <INFO_CMD,WALK_CMD>class|clas|cla { return tCLASS; } |
| <INFO_CMD,WALK_CMD>module|modul|modu|mod { return tMODULE; } |
| <INFO_CMD,WALK_CMD>queue|queu|que { return tQUEUE; } |
| <INFO_CMD,WALK_CMD>process|proces|proce|proc { return tPROCESS; } |
| <INFO_CMD,WALK_CMD>threads|thread|threa|thre|thr|th { return tTHREAD; } |
| <INFO_CMD,WALK_CMD>modref|modre|modr { return tMODREF; } |
| <WALK_CMD>exception|except|exc|ex { return tEXCEPTION; } |
| <INFO_CMD>registers|regs|reg|re { return tREGS; } |
| <INFO_CMD>segments|segment|segm|seg|se { return tSEGMENTS; } |
| <INFO_CMD>stack|stac|sta|st { return tSTACK; } |
| <INFO_CMD>maps|map { return tMAPS; } |
| <INFO_CMD,WALK_CMD>window|windo|wind|win|wnd { return tWND; } |
| <HELP_CMD>info|inf|in { return tINFO; } |
| <MODE_CMD>vm86 { return tVM86; } |
| |
| <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; } |
| |
| {IDENTIFIER} { yylval.string = DEBUG_MakeSymbol(yytext); return tIDENTIFIER; } |
| "$"{IDENTIFIER} { yylval.string = DEBUG_MakeSymbol(yytext+1); return tINTVAR; } |
| |
| <PATH_EXPECTED>{PATHNAME} { yylval.string = DEBUG_MakeSymbol(yytext); return tPATH; } |
| |
| <*>[ \t]+ /* Eat up whitespace */ |
| |
| <NOPROCESS>. { BEGIN(ASTRING_EXPECTED); yyless(0); return tNOPROCESS;} |
| <*>. { if (syntax_error == 0) { |
| syntax_error++; |
| DEBUG_Printf(DBG_CHN_MESG, "Syntax Error (%s)\n", yytext); } |
| } |
| %% |
| |
| #ifndef yywrap |
| int yywrap(void) { return 1; } |
| #endif |
| |
| #ifndef whitespace |
| #define whitespace(c) (((c) == ' ') || ((c) == '\t')) |
| #endif |
| |
| |
| /* Strip whitespace from the start and end of STRING. */ |
| static void stripwhite(char *string) |
| { |
| int i, last; |
| |
| for (i = 0; whitespace(string[i]); i++); |
| if (i) strcpy(string, string + i); |
| |
| last = i = strlen(string) - 1; |
| if (string[last] == '\n') i--; |
| |
| while (i > 0 && whitespace(string[i])) i--; |
| if (string[last] == '\n') |
| string[++i] = '\n'; |
| string[++i] = '\0'; |
| } |
| |
| static int DEBUG_FetchEntireLine(const char* pfx, char** line, size_t* alloc, BOOL check_nl) |
| { |
| char buf_line[256]; |
| DWORD nread; |
| size_t len; |
| |
| /* as of today, console handles can be file handles... so better use file APIs rather than |
| * consoles |
| */ |
| WriteFile(DEBUG_hParserOutput, pfx, strlen(pfx), NULL, NULL); |
| |
| len = 0; |
| do |
| { |
| if (!ReadFile(DEBUG_hParserInput, buf_line, sizeof(buf_line) - 1, &nread, NULL) || nread == 0) |
| break; |
| buf_line[nread] = '\0'; |
| |
| if (check_nl && len == 0 && nread == 1 && buf_line[0] == '\n') |
| return 0; |
| |
| /* store stuff at the end of last_line */ |
| if (len + nread + 1 > *alloc) |
| { |
| *line = HeapReAlloc(GetProcessHeap(), 0, *line, *alloc += nread + 1); |
| } |
| strcpy(*line + len, buf_line); |
| len += nread; |
| } while (nread == 0 || buf_line[nread - 1] != '\n'); |
| |
| if (!len) |
| { |
| *line = HeapReAlloc(GetProcessHeap(), 0, *line, *alloc = 1); |
| **line = '\0'; |
| strcpy(*line + len, buf_line); |
| len += nread; |
| } while (nread == 0 || buf_line[nread - 1] != '\n'); |
| |
| /* Remove leading and trailing whitespace from the line */ |
| stripwhite(*line); |
| return 1; |
| } |
| |
| static int DEBUG_FetchFromLine(const char* pfx, char* buf, int size) |
| { |
| size_t len; |
| static char* last_line = NULL; |
| static size_t last_line_size = 0; |
| static size_t last_line_idx = 0; |
| |
| /* first alloc of our current buffer */ |
| if (!last_line) |
| { |
| last_line = HeapAlloc(GetProcessHeap(), 0, last_line_size = 2); |
| assert(last_line); |
| last_line[0] = '\n'; |
| last_line[1] = '\0'; |
| } |
| |
| /* try first to fetch the remaining of an existing line */ |
| if (last_line_idx == 0) |
| { |
| /* no remaining chars to be read from last line, grab a brand new line up to '\n' */ |
| DEBUG_FlushSymbols(); |
| |
| DEBUG_FetchEntireLine(pfx, &last_line, &last_line_size, TRUE); |
| } |
| |
| 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; |
| } |
| |
| int DEBUG_ReadLine(const char* pfx, char* buf, int size) |
| { |
| char* line = NULL; |
| size_t len = 0; |
| |
| DEBUG_FetchEntireLine(pfx, &line, &len, FALSE); |
| len = min(size, len); |
| memcpy(buf, line, len - 1); |
| buf[len] = '\0'; |
| return len - 1; |
| } |
| |
| static char** local_symbols /* = NULL */; |
| static int next_symbol /* = 0 */; |
| static int alloc_symbol /* = 0 */; |
| |
| char* DEBUG_MakeSymbol(const char* symbol) |
| { |
| assert(0 <= next_symbol && next_symbol < alloc_symbol + 1); |
| if (next_symbol >= alloc_symbol) |
| { |
| local_symbols = HeapReAlloc(GetProcessHeap(), 0, local_symbols, |
| (alloc_symbol += 32) * sizeof(local_symbols[0])); |
| assert(local_symbols); |
| } |
| return local_symbols[next_symbol++] = DBG_strdup(symbol); |
| } |
| |
| void DEBUG_FlushSymbols(void) |
| { |
| while(--next_symbol >= 0) DBG_free(local_symbols[next_symbol]); |
| next_symbol = 0; |
| } |