--- parser3/src/main/pa_common.C 2001/03/28 09:38:08 1.34 +++ parser3/src/main/pa_common.C 2001/05/19 17:37:06 1.54 @@ -1,4 +1,3 @@ - /** @file Parser: commonly functions. @@ -6,17 +5,9 @@ Author: Alexander Petrosyan (http://design.ru/paf) - $Id: pa_common.C,v 1.34 2001/03/28 09:38:08 paf Exp $ + $Id: pa_common.C,v 1.54 2001/05/19 17:37:06 parser Exp $ */ -#include "pa_config_includes.h" - -#include -#include -#include -#include -#include - #include "pa_common.h" #include "pa_types.h" #include "pa_exception.h" @@ -26,6 +17,15 @@ #include "pa_hash.h" #include "pa_string.h" +#ifndef WIN32 +# ifndef _O_TEXT +# define _O_TEXT 0 +# endif +# ifndef _O_BINARY +# define _O_BINARY 0 +# endif +#endif + #if _MSC_VER int __vsnprintf(char *b, size_t s, const char *f, va_list l) { @@ -47,49 +47,60 @@ int __snprintf(char *b, size_t s, const char *file_read_text(Pool& pool, const String& file_spec, bool fail_on_read_problem) { void *result; size_t size; - return - file_read(pool, file_spec, result, size, fail_on_read_problem)?(char *)result:0; + return file_read(pool, file_spec, result, size, true, + fail_on_read_problem)?(char *)result:0; } bool file_read(Pool& pool, const String& file_spec, - void*& data, size_t& size, bool as_text, - bool fail_on_read_problem) { - char *fname=file_spec.cstr(); + void*& data, size_t& read_size, bool as_text, + bool fail_on_read_problem, + size_t offset, size_t limit) { + const char *fname=file_spec.cstr(String::UL_FILE_NAME); int f; struct stat finfo; // first open, next stat: - // directory update of NTFS symbolic links performed on open. + // directory update of NTFS hard links performed on open. // ex: // a.html:^test[] and b.html hardlink to a.html // user inserts ! before ^test in a.html // directory entry of b.html in NTFS not updated at once, - // they delay update till open, so we must not do stat before that + // they delay update till open, so we would receive "!^test[" string + // if would do stat, next open. if( (f=open(fname, O_RDONLY|(as_text?_O_TEXT:_O_BINARY)))>=0 && stat(fname, &finfo)==0) { /*if(exclusive) flock(f, LOCK_EX);*/ - data=pool.malloc(finfo.st_size+(as_text?1:0)); - size=read(f, data, finfo.st_size); + size_t max_size=limit?min(offset+limit, finfo.st_size)-offset:finfo.st_size; + if(!max_size) { // eof + data=0; + read_size=0; + return true; + } + data=pool.malloc(max_size+(as_text?1:0)); + if(offset) + lseek(f, offset, SEEK_SET); + read_size=read(f, data, max_size); /*if(exclusive) flock(f, LOCK_UN);*/ close(f); - if(size>=0 && size<=(size_t)finfo.st_size) { + if(read_size>=0 && read_size<=max_size) { if(as_text) - ((char *)data)[size]=0; + ((char*&)data)[read_size]=0; } else PTHROW(0, 0, &file_spec, - "read failed: actually read %d bytes count not in [0..%ul] valid range", - size, (unsigned long)finfo.st_size); + "read failed: actually read %d bytes count not in [0..%lu] valid range", + read_size, (unsigned long)max_size); //never return true;//prepare_config(result, remove_empty_lines); } if(fail_on_read_problem) PTHROW(0, 0, &file_spec, - "read failed: %s (#%d)", strerror(errno), errno); + "read failed: %s (%d), actual filename '%s'", + strerror(errno), errno, fname); return false; } @@ -98,9 +109,16 @@ void file_write(Pool& pool, const void *data, size_t size, bool as_text/*, bool exclusive*/) { - char *fname=file_spec.cstr(); + const char *fname=file_spec.cstr(String::UL_FILE_NAME); int f; - if(access(fname, F_OK)!=0) {/*no*/ + if(access(fname, W_OK)!=0) {/*no*/ + size_t pos_after=1; + int pos_before; + while((pos_before=file_spec.pos("/", 1, pos_after))>=0) { + mkdir(file_spec.mid(0, pos_before).cstr(String::UL_FILE_NAME), 0775); + pos_after=pos_before+1; + } + if((f=open(fname, O_WRONLY|O_CREAT|_O_BINARY, 0666))>0) close(f); } @@ -126,18 +144,58 @@ void file_write(Pool& pool, } PTHROW(0, 0, &file_spec, - "write failed: %s (#%d)", strerror(errno), errno); + "write failed: %s (%d), actual filename '%s'", + strerror(errno), errno, fname); } +static void rmdir(const String& file_spec, size_t pos_after) { + int pos_before; + if((pos_before=file_spec.pos("/", 1, pos_after))>=0) + rmdir(file_spec, pos_before+1); + + rmdir(file_spec.mid(0, pos_after-1/* / */).cstr(String::UL_FILE_NAME)); +} void file_delete(Pool& pool, const String& file_spec) { - if(unlink(file_spec.cstr())!=0) + const char *fname=file_spec.cstr(String::UL_FILE_NAME); + if(unlink(fname)!=0) PTHROW(0, 0, &file_spec, - "unlink failed: %s (#%d)", strerror(errno), errno); + "unlink failed: %s (%d), actual filename '%s'", + strerror(errno), errno, fname); + + rmdir(file_spec, 1); } + +static bool entry_readable(const String& file_spec, bool need_dir) { + const char *fname=file_spec.cstr(String::UL_FILE_NAME); + struct stat finfo; + if(access(fname, R_OK)==0 && stat(fname, &finfo)==0) { + bool is_dir=(bool)(finfo.st_mode&S_IFDIR); + return is_dir==need_dir; + } + return false; +} bool file_readable(const String& file_spec) { - return access(file_spec.cstr(), R_OK)==0; + return entry_readable(file_spec, false); +} +bool dir_readable(const String& file_spec) { + return entry_readable(file_spec, true); +} +bool file_executable(const String& file_spec) { + return access(file_spec.cstr(String::UL_FILE_NAME), X_OK)==0; +} + +size_t file_size(const String& file_spec) { + Pool& pool=file_spec.pool(); + const char *fname=file_spec.cstr(String::UL_FILE_NAME); + struct stat finfo; + if(stat(fname, &finfo)!=0) + PTHROW(0, 0, + &file_spec, + "getting file size failed: %s (%d), real filename '%s'", + strerror(errno), errno, fname); + return finfo.st_size; } char *getrow(char **row_ref, char delim) { @@ -181,6 +239,7 @@ char *rsplit(char *string, char delim) { return NULL; } +/// @todo less stupid type detection char *format(Pool& pool, double value, char *fmt) { char *result=(char *)pool.malloc(MAX_NUMBER); if(fmt) @@ -197,14 +256,14 @@ char *format(Pool& pool, double value, c return result; } -size_t stdout_write(const char *buf, size_t size) { +size_t stdout_write(const void *buf, size_t size) { #ifdef WIN32 do{ int chunk_written=fwrite(buf, 1, min(8*0x400, size), stdout); if(chunk_written<=0) break; size-=chunk_written; - buf+=chunk_written; + buf=((const char*)buf)+chunk_written; } while(size>0); return size; @@ -251,29 +310,39 @@ const char *unescape_chars(Pool& pool, c return s; } +/// used by attributed_meaning_to_string / append_attribute_subattribute +struct Attributed_meaning_info { + String *header; // header line being constructed + String::Untaint_lang lang; // language in which to append to that line +}; static void append_attribute_subattribute(const Hash::Key& akey, Hash::Val *avalue, void *info) { if(akey==VALUE_NAME) return; + Attributed_meaning_info& ami=*static_cast(info); + // ...; charset=windows1251 - String *string=static_cast(info); - string->APPEND_CONST("; "); - string->append(akey, String::UL_HEADER, true); - string->APPEND_CONST("="); - string->append(static_cast(avalue)->as_string(), - String::UL_HEADER, true); + *ami.header << "; "; + ami.header->append(akey, ami.lang, true); + *ami.header << "="; + ami.header->append(static_cast(avalue)->as_string(), ami.lang, true); } -const String& attributed_meaning_to_string(Value& meaning) { +const String& attributed_meaning_to_string(Value& meaning, + String::Untaint_lang lang) { String &result=*new(meaning.pool()) String(meaning.pool()); if(Hash *hash=meaning.get_hash()) { // $value(value) $subattribute(subattribute value) if(Value *value=static_cast(hash->get(*value_name))) - result.append(value->as_string(), String::UL_HEADER, true); + result.append(value->as_string(), lang, true); - hash->for_each(append_attribute_subattribute, &result); + Attributed_meaning_info attributed_meaning_info={ + &result, + lang + }; + hash->for_each(append_attribute_subattribute, &attributed_meaning_info); } else // result value - result.append(meaning.as_string(), String::UL_HEADER, true); + result.append(meaning.as_string(), lang, true); return result; } @@ -285,4 +354,68 @@ void back_slashes_to_slashes(char *s) { if(*s=='\\') *s='/'; } +/* +void slashes_to_back_slashes(char *s) { + if(s) + for(; *s; s++) + if(*s=='/') + *s='\\'; +} +*/ #endif + +bool StrEqNc(const char *s1, const char *s2, bool strict) { + while(true) { + if(!(*s1)) { + if(!(*s2)) + return true; + else + return !strict; + } else if(!(*s2)) + return !strict; + if(isalpha(*s1)) { + if(tolower(*s1) !=tolower(*s2)) + return false; + } else if((*s1) !=(*s2)) + return false; + s1++; + s2++; + } +} + +char *unquote(char*& current, char stop_at) { + char *result=current; + char *dest=current; + // skip leading WS + while(*current==' ' || *current=='\t') + current++; + if(!*current) + return current=0; + + bool quoted=*current=='"'; + if(quoted) + current++; + + for(; *current; ) { + if(quoted) + switch(*current) { + case '\\': // "...\c + if(current[1]) + current++; + break; + case '"': + current++; + goto break2; + } + else + if(*current==stop_at) + break; + + *dest++=*current++; + } +break2: + if(*current) + current++; // skip 'stop_at' + *dest=0; + return result; +}