--- parser3/src/main/pa_common.C 2001/06/28 07:44:17 1.56 +++ parser3/src/main/pa_common.C 2001/11/14 13:07:41 1.90 @@ -2,10 +2,10 @@ Parser: commonly functions. Copyright(c) 2001 ArtLebedev Group(http://www.artlebedev.com) + Author: Alexander Petrosyan (http://paf.design.ru) - Author: Alexander Petrosyan (http://design.ru/paf) + $Id: pa_common.C,v 1.90 2001/11/14 13:07:41 paf Exp $ */ -static const char *RCSId="$Id: pa_common.C,v 1.56 2001/06/28 07:44:17 parser Exp $"; #include "pa_common.h" #include "pa_types.h" @@ -16,22 +16,56 @@ static const char *RCSId="$Id: pa_common #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 +#ifndef _O_TEXT +# define _O_TEXT 0 +#endif +#ifndef _O_BINARY +# define _O_BINARY 0 +#endif +#ifndef O_TRUNC +# define O_TRUNC 0 #endif - -#if _MSC_VER int __vsnprintf(char *b, size_t s, const char *f, va_list l) { - int r=_vsnprintf(b, --s, f, l); - b[s]=0; + if(!s) + return 0; + + int r; + // note: on win32& maybe somewhere else + // vsnprintf do not writes terminating 0 in 'buffer full' case, reducing + --s; +#if _MSC_VER + /* + win32: + mk:@MSITStore:C:\Program%20Files\Microsoft%20Visual%20Studio\MSDN\2001APR\1033\vccore.chm::/html/_crt__vsnprintf.2c_._vsnwprintf.htm + + if the number of bytes to write exceeds buffer, then count bytes are written and –1 is returned + */ + r=_vsnprintf(b, s, f, l); + if(r<0) + r=s; +#else + r=_vsnprintf(b, s, f, l); + /* + solaris: + man vsnprintf + + The snprintf() function returns the number of characters + formatted, that is, the number of characters that would have + been written to the buffer if it were large enough. If the + value of n is 0 on a call to snprintf(), an unspecified + value less than 1 is returned. + */ + + if(r<0) + r=0; + else if(r>s) + r=s; +#endif + b[r]=0; return r; } + int __snprintf(char *b, size_t s, const char *f, ...) { va_list l; va_start(l, f); @@ -40,20 +74,50 @@ int __snprintf(char *b, size_t s, const return r; } -#endif +static char *strnchr(char *buf, size_t size, char c) { + for(; size-->0; buf++) { + if(*buf==c) + return buf; + } + return 0; +} + +void fix_line_breaks(char *buf, size_t& size) { + //_asm int 3; + const char * const eob=buf+size; + char *dest=buf; + // fix DOS: \r\n -> \n + // fix Macintosh: \r -> \n + char *bol=buf; + while(char *eol=strnchr(bol, eob -bol, '\r')) { + size_t len=eol-bol; + if(dest!=bol) + memcpy(dest, bol, len); + dest+=len; + *dest++='\n'; + + if(&eol[1]=0 && + (f=open(fname, O_RDONLY|(as_text?_O_BINARY/*_O_TEXT*/:_O_BINARY)))>=0 && stat(fname, &finfo)==0) { /*if(exclusive) flock(f, LOCK_EX);*/ size_t max_size=limit?min(offset+limit, finfo.st_size)-offset:finfo.st_size; + int read_size; if(!max_size) { // eof - data=0; + if(as_text) { + data=pool.malloc(1); + *(char*)data=0; + } else + data=0; read_size=0; - return true; + } else { + data=pool.malloc(max_size+(as_text?1:0), 3); + if(offset) + lseek(f, offset, SEEK_SET); + read_size=read(f, data, max_size); } - 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(!max_size) // eof + return true; - if(read_size>=0 && read_size<=max_size) { - if(as_text) - ((char*&)data)[read_size]=0; - } else - PTHROW(0, 0, + if(read_size<0 || read_size>max_size) + throw Exception(0, 0, &file_spec, "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); + + data_size=read_size; + if(as_text) { + fix_line_breaks((char *)data, data_size); + // note: after fixing + ((char*&)data)[data_size]=0; + } + return true; } if(fail_on_read_problem) - PTHROW(0, 0, + throw Exception(0, 0, &file_spec, "read failed: %s (%d), actual filename '%s'", strerror(errno), errno, fname); return false; } +static void create_dir_for_file(const String& file_spec) { + 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_SPEC), 0775); + pos_after=pos_before+1; + } +} + void file_write(Pool& pool, const String& file_spec, const void *data, size_t size, - bool as_text/*, + bool as_text, + bool do_append/*, bool exclusive*/) { - const char *fname=file_spec.cstr(String::UL_FILE_NAME); + const char *fname=file_spec.cstr(String::UL_FILE_SPEC); int f; - 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(access(fname, W_OK)!=0) // no + create_dir_for_file(file_spec); - 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); + if((f=open(fname, + O_CREAT|O_RDWR + |(as_text?_O_TEXT:_O_BINARY) + |(do_append?O_APPEND:O_TRUNC), 0666))>=0) { + /*if(exclusive) + flock(f, LOCK_EX);*/ + + if(size) write(f, data, size); +#if O_TRUNC==0 + ftruncate(f, size); #endif - /*if(exclusive) - flock(f, LOCK_UN);*/ - close(f); - return; - } - } - PTHROW(0, 0, - &file_spec, - "write failed: %s (%d), actual filename '%s'", - strerror(errno), errno, fname); + /*if(exclusive) + flock(f, LOCK_UN);*/ + close(f); + } else + throw Exception(0, 0, + &file_spec, + "write failed: %s (%d), actual filename '%s'", + strerror(errno), errno, fname); } +// throws nothing! [this is required in file_move & file_delete] 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)); + rmdir(file_spec.mid(0, pos_after-1/* / */).cstr(String::UL_FILE_SPEC)); } void file_delete(Pool& pool, const String& file_spec) { - const char *fname=file_spec.cstr(String::UL_FILE_NAME); + const char *fname=file_spec.cstr(String::UL_FILE_SPEC); if(unlink(fname)!=0) - PTHROW(0, 0, + throw Exception(0, 0, &file_spec, "unlink failed: %s (%d), actual filename '%s'", strerror(errno), errno, fname); rmdir(file_spec, 1); } +void file_move(Pool& pool, const String& old_spec, const String& new_spec) { + const char *old_spec_cstr=old_spec.cstr(String::UL_FILE_SPEC); + const char *new_spec_cstr=new_spec.cstr(String::UL_FILE_SPEC); + + create_dir_for_file(new_spec); + + if(rename(old_spec_cstr, new_spec_cstr)!=0) + throw Exception(0, 0, + &old_spec, + "rename failed: %s (%d), actual filename '%s' to '%s'", + strerror(errno), errno, old_spec_cstr, new_spec_cstr); + + rmdir(old_spec, 1); +} static bool entry_readable(const String& file_spec, bool need_dir) { - const char *fname=file_spec.cstr(String::UL_FILE_NAME); + const char *fname=file_spec.cstr(String::UL_FILE_SPEC); struct stat finfo; if(access(fname, R_OK)==0 && stat(fname, &finfo)==0) { - bool is_dir=(bool)(finfo.st_mode&S_IFDIR); + bool is_dir=finfo.st_mode&S_IFDIR != 0; return is_dir==need_dir; } return false; @@ -181,20 +267,38 @@ bool file_readable(const String& file_sp bool dir_readable(const String& file_spec) { return entry_readable(file_spec, true); } +String *file_readable(const String& path, const String& name) { + String *result=new(path.pool()) String(path); + *result << "/"; + *result << name; + return file_readable(*result)?result:0; +} bool file_executable(const String& file_spec) { - return access(file_spec.cstr(String::UL_FILE_NAME), X_OK)==0; + return access(file_spec.cstr(String::UL_FILE_SPEC), X_OK)==0; } -size_t file_size(const String& file_spec) { +bool file_stat(const String& file_spec, + size_t& rsize, + time_t& ratime, + time_t& rmtime, + time_t& rctime, + bool fail_on_read_problem) { Pool& pool=file_spec.pool(); - const char *fname=file_spec.cstr(String::UL_FILE_NAME); + const char *fname=file_spec.cstr(String::UL_FILE_SPEC); 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; + if(fail_on_read_problem) + throw Exception(0, 0, + &file_spec, + "getting file size failed: %s (%d), real filename '%s'", + strerror(errno), errno, fname); + else + return false; + rsize=finfo.st_size; + ratime=finfo.st_atime; + rmtime=finfo.st_mtime; + rctime=finfo.st_ctime; + return true; } char *getrow(char **row_ref, char delim) { @@ -240,7 +344,7 @@ char *rsplit(char *string, char delim) { /// @todo less stupid type detection char *format(Pool& pool, double value, char *fmt) { - char *result=(char *)pool.malloc(MAX_NUMBER); + char *result=(char *)pool.malloc(MAX_NUMBER, 4); if(fmt) if(strpbrk(fmt, "diouxX")) if(strpbrk(fmt, "ouxX")) @@ -271,8 +375,8 @@ size_t stdout_write(const void *buf, siz #endif } -const char *unescape_chars(Pool& pool, const char *cp, int len) { - char *s=(char *)pool.malloc(len + 1); +char *unescape_chars(Pool& pool, const char *cp, int len) { + char *s=(char *)pool.malloc(len + 1, 5); enum EscapeState { EscapeRest, EscapeFirst, @@ -323,14 +427,14 @@ static void append_attribute_subattribut // ...; charset=windows1251 *ami.header << "; "; - ami.header->append(akey, ami.lang, true); + ami.header->append(akey, ami.lang); *ami.header << "="; - ami.header->append(static_cast(avalue)->as_string(), ami.lang, true); + ami.header->append(static_cast(avalue)->as_string(), ami.lang); } 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()) { + if(Hash *hash=meaning.get_hash(0)) { // $value(value) $subattribute(subattribute value) if(Value *value=static_cast(hash->get(*value_name))) result.append(value->as_string(), lang, true); @@ -382,39 +486,34 @@ bool StrEqNc(const char *s1, const char } } -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; +static bool isLeap(int year) { + return !( + (year % 4) || ((year % 400) && !(year % 100)) + ); +} + +int getMonthDays(int year, int month) { + int monthDays[]={ + 31, + isLeap(year) ? 29 : 28, + 31, + 30, + 31, + 30, + 31, + 31, + 30, + 31, + 30, + 31 + }; + return monthDays[month]; +} + +void remove_crlf(char *start, char *end) { + for(char *p=start; p