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| version 1.4, 2001/03/10 15:44:31 | version 1.39, 2001/04/03 17:01:03 |
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| Line 1 | Line 1 |
| /* | |
| $Id$ | /** @file |
| Parser: commonly functions. | |
| Copyright(c) 2001 ArtLebedev Group(http://www.artlebedev.com) | |
| Author: Alexander Petrosyan <paf@design.ru>(http://design.ru/paf) | |
| $Id$ | |
| */ | */ |
| #ifdef HAVE_CONFIG_H | #include "pa_config_includes.h" |
| # include "pa_config.h" | |
| #endif | |
| #include <fcntl.h> | #include <fcntl.h> |
| #include <sys/types.h> | |
| #include <sys/stat.h> | #include <sys/stat.h> |
| #include <io.h> | #include <io.h> |
| #include <stdio.h> | #include <stdio.h> |
| #include <errno.h> | |
| #include "pa_common.h" | #include "pa_common.h" |
| #include "pa_types.h" | #include "pa_types.h" |
| #include "pa_exception.h" | #include "pa_exception.h" |
| #include "pa_pool.h" | |
| #include "pa_globals.h" | |
| #include "pa_value.h" | |
| #include "pa_hash.h" | |
| #include "pa_string.h" | |
| #ifdef WIN32 | #if _MSC_VER |
| int __vsnprintf(char *b, size_t s, const char *f, va_list l) { | int __vsnprintf(char *b, size_t s, const char *f, va_list l) { |
| int r=_vsnprintf(b, --s, f, l); | int r=_vsnprintf(b, --s, f, l); |
| Line 33 int __snprintf(char *b, size_t s, const | Line 43 int __snprintf(char *b, size_t s, const |
| #endif | #endif |
| char *file_read(Pool& pool, char *fname, bool fail_on_read_problem) { | |
| int f; | 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, 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(String::UL_FILE_NAME); | |
| int f; | |
| struct stat finfo; | struct stat finfo; |
| if (fname && !stat(fname,&finfo) && (f=open(fname,O_RDONLY | |
| #ifdef WIN32 | // first open, next stat: |
| |O_TEXT | // directory update of NTFS symbolic links performed on open. |
| #endif | // ex: |
| ))>=0){ | // 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 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) | /*if(exclusive) |
| flock(f, LOCK_EX);*/ | flock(f, LOCK_EX);*/ |
| data=pool.malloc(finfo.st_size+(as_text?1:0)); | |
| char *result=static_cast<char *>(pool.malloc(finfo.st_size+1)); | size=read(f, data, finfo.st_size); |
| int read_size=read(f,result,finfo.st_size); | |
| if(read_size>=0 && read_size<=finfo.st_size) | |
| result[read_size]='\0'; | |
| /*if(exclusive) | /*if(exclusive) |
| flock(f, LOCK_UN);*/ | flock(f, LOCK_UN);*/ |
| close(f); | close(f); |
| return result;//prepare_config(result, remove_empty_lines); | |
| if(size>=0 && size<=(size_t)finfo.st_size) { | |
| if(as_text) | |
| ((char *)data)[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); //never | |
| return true;//prepare_config(result, remove_empty_lines); | |
| } | } |
| if(fail_on_read_problem) | if(fail_on_read_problem) |
| POOL_THROW(0,0, | PTHROW(0, 0, |
| 0, | &file_spec, |
| "use: can not read '%s' file", fname); | "read failed: %s (#%d)", strerror(errno), errno); |
| return NULL; | return false; |
| } | |
| /// @test mkdirs | |
| void file_write(Pool& pool, | |
| const String& file_spec, | |
| const void *data, size_t size, | |
| bool as_text/*, | |
| bool exclusive*/) { | |
| char *fname=file_spec.cstr(String::UL_FILE_NAME); | |
| int f; | |
| if(access(fname, F_OK)!=0) {/*no*/ | |
| if((f=open(fname, O_WRONLY|O_CREAT|_O_BINARY, 0666))>0) | |
| close(f); | |
| } | |
| if(access(fname, R_OK|W_OK)==0) { | |
| int mode=O_RDWR|(as_text?_O_TEXT:_O_BINARY) | |
| #ifdef WIN32 | |
| |O_TRUNC | |
| #endif | |
| ; | |
| if((f=open(fname, mode, 0666))>=0) { | |
| /*if(exclusive) | |
| flock(f, LOCK_EX);*/ | |
| if(size) write(f, data, size); | |
| #ifndef WIN32 | |
| ftruncate(f, size); | |
| #endif | |
| /*if(exclusive) | |
| flock(f, LOCK_UN);*/ | |
| close(f); | |
| return; | |
| } | |
| } | |
| PTHROW(0, 0, | |
| &file_spec, | |
| "write failed: %s (#%d)", strerror(errno), errno); | |
| } | |
| void file_delete(Pool& pool, const String& file_spec) { | |
| if(unlink(file_spec.cstr(String::UL_FILE_NAME))!=0) | |
| PTHROW(0, 0, | |
| &file_spec, | |
| "unlink failed: %s (#%d)", strerror(errno), errno); | |
| } | |
| bool file_readable(const String& file_spec) { | |
| return access(file_spec.cstr(String::UL_FILE_NAME), R_OK)==0; | |
| } | |
| char *getrow(char **row_ref, char delim) { | |
| char *result=*row_ref; | |
| if(result) { | |
| *row_ref=strchr(result, delim); | |
| if(*row_ref) | |
| *((*row_ref)++)=0; | |
| else if(!*result) | |
| return 0; | |
| } | |
| return result; | |
| } | |
| char *lsplit(char *string, char delim) { | |
| if(string) { | |
| char *v=strchr(string, delim); | |
| if(v) { | |
| *v=0; | |
| return v+1; | |
| } | |
| } | |
| return 0; | |
| } | |
| char *lsplit(char **string_ref, char delim) { | |
| char *result=*string_ref; | |
| char *next=lsplit(*string_ref, delim); | |
| *string_ref=next; | |
| return result; | |
| } | |
| char *rsplit(char *string, char delim) { | |
| if(string) { | |
| char *v=strrchr(string, delim); | |
| if(v) { | |
| *v=0; | |
| return v+1; | |
| } | |
| } | |
| return NULL; | |
| } | |
| /// @todo less stupid type detection | |
| char *format(Pool& pool, double value, char *fmt) { | |
| char *result=(char *)pool.malloc(MAX_NUMBER); | |
| if(fmt) | |
| if(strpbrk(fmt, "diouxX")) | |
| if(strpbrk(fmt, "ouxX")) | |
| snprintf(result, MAX_NUMBER, fmt, (uint)value ); | |
| else | |
| snprintf(result, MAX_NUMBER, fmt, (int)value ); | |
| else | |
| snprintf(result, MAX_NUMBER, fmt, value); | |
| else | |
| snprintf(result, MAX_NUMBER, "%d", (int)value); | |
| return result; | |
| } | |
| 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=((const char*)buf)+chunk_written; | |
| } while(size>0); | |
| return size; | |
| #else | |
| return fwrite(buf, 1, size, stdout); | |
| #endif | |
| } | |
| const char *unescape_chars(Pool& pool, const char *cp, int len) { | |
| char *s=(char *)pool.malloc(len + 1); | |
| enum EscapeState { | |
| EscapeRest, | |
| EscapeFirst, | |
| EscapeSecond | |
| } escapeState=EscapeRest; | |
| int escapedValue=0; | |
| int srcPos=0; | |
| int dstPos=0; | |
| while(srcPos < len) { | |
| int ch=cp[srcPos]; | |
| switch(escapeState) { | |
| case EscapeRest: | |
| if(ch=='%') { | |
| escapeState=EscapeFirst; | |
| } else if(ch=='+') { | |
| s[dstPos++]=' '; | |
| } else { | |
| s[dstPos++]=ch; | |
| } | |
| break; | |
| case EscapeFirst: | |
| escapedValue=hex_value[ch] << 4; | |
| escapeState=EscapeSecond; | |
| break; | |
| case EscapeSecond: | |
| escapedValue +=hex_value[ch]; | |
| s[dstPos++]=escapedValue; | |
| escapeState=EscapeRest; | |
| break; | |
| } | |
| srcPos++; | |
| } | |
| s[dstPos]=0; | |
| return s; | |
| } | } |
| static void append_attribute_subattribute(const Hash::Key& akey, Hash::Val *avalue, | |
| void *info) { | |
| if(akey==VALUE_NAME) | |
| return; | |
| // ...; charset=windows1251 | |
| String *string=static_cast<String *>(info); | |
| if(string->size()) | |
| string->APPEND_CONST("; "); | |
| string->append(akey, String::UL_HEADER, true); | |
| string->APPEND_CONST("="); | |
| string->append(static_cast<Value *>(avalue)->as_string(), | |
| String::UL_HEADER, true); | |
| } | |
| const String& attributed_meaning_to_string(Value& meaning) { | |
| String &result=*new(meaning.pool()) String(meaning.pool()); | |
| if(Hash *hash=meaning.get_hash()) { | |
| // $value(value) $subattribute(subattribute value) | |
| if(Value *value=static_cast<Value *>(hash->get(*value_name))) | |
| result.append(value->as_string(), String::UL_HEADER, true); | |
| hash->for_each(append_attribute_subattribute, &result); | |
| } else // result value | |
| result.append(meaning.as_string(), String::UL_HEADER, true); | |
| return result; | |
| } | |
| #ifdef WIN32 | |
| void back_slashes_to_slashes(char *s) { | |
| if(s) | |
| for(; *s; s++) | |
| if(*s=='\\') | |
| *s='/'; | |
| } | |
| #endif |