--- parser3/src/main/pa_common.C 2001/03/19 20:07:38 1.18 +++ parser3/src/main/pa_common.C 2001/11/14 11:26:17 1.88 @@ -2,23 +2,11 @@ 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 1.18 2001/03/19 20:07:38 paf Exp $ + $Id: pa_common.C,v 1.88 2001/11/14 11:26:17 paf Exp $ */ -#ifdef HAVE_CONFIG_H -# include "pa_config.h" -#endif - -#include -#include -#include -#include -#include -#include - #include "pa_common.h" #include "pa_types.h" #include "pa_exception.h" @@ -28,13 +16,56 @@ #include "pa_hash.h" #include "pa_string.h" -#ifdef WIN32 +#ifndef _O_TEXT +# define _O_TEXT 0 +#endif +#ifndef _O_BINARY +# define _O_BINARY 0 +#endif +#ifndef O_TRUNC +# define O_TRUNC 0 +#endif 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 + int 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); @@ -43,103 +74,232 @@ 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; + } -#ifdef WIN32 - -void flock(int fd, int operation) { - lseek(fd, 0, SEEK_SET); - while(_locking(fd, operation, 1)!=0); - lseek(fd, 0, SEEK_SET); + return 0; } -#endif +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 && + 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 + if(as_text) { + data=pool.malloc(1); + *(char*)data=0; + } else + data=0; + read_size=0; + } 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); + } + /*if(exclusive) + flock(f, LOCK_UN);*/ + close(f); + if(!max_size) // eof + return true; -void flock(int fd, int operation) { - lseek(fd, 0, SEEK_SET); - lockf(fd, operation, 1); - lseek(fd, 0, SEEK_SET); + 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 + + 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) + throw Exception(0, 0, + &file_spec, + "read failed: %s (%d), actual filename '%s'", + strerror(errno), errno, fname); + return false; } -#endif -void lock(FILE *f, long position) { - flock(fileno(f), LOCK_EX); -} -void unlock(FILE *f) { - flock(fileno(f), LOCK_UN); +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; + } } - -char *file_read(Pool& pool, const char *fname, bool fail_on_read_problem) { - int f; - struct stat finfo; - if(fname && !stat(fname,&finfo) &&(f=open(fname,O_RDONLY -#ifdef WIN32 - |O_TEXT -#endif - ))>=0) { +void file_write(Pool& pool, + const String& file_spec, + const void *data, size_t size, + bool as_text, + bool do_append/*, + bool exclusive*/) { + const char *fname=file_spec.cstr(String::UL_FILE_SPEC); + int f; + if(access(fname, W_OK)!=0) // no + create_dir_for_file(file_spec); + + 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);*/ - - char *result=(char *)pool.malloc(finfo.st_size+1); - int read_size=read(f,result,finfo.st_size); - if(read_size>=0 && read_size<=finfo.st_size) - result[read_size]='\0'; + + if(size) write(f, data, size); +#if O_TRUNC==0 + ftruncate(f, size); +#endif /*if(exclusive) flock(f, LOCK_UN);*/ close(f); - return result;//prepare_config(result, remove_empty_lines); - } - if(fail_on_read_problem) - PTHROW(0,0, - 0, - "use: can not read '%s' file", fname); - return 0; + } else + throw Exception(0, 0, + &file_spec, + "write failed: %s (%d), actual filename '%s'", + strerror(errno), errno, fname); } -void file_write(Pool& pool, - const char *fname, - const char *data, size_t size, - bool exclusive) { - if(fname) { - 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) { - if((f=open(fname,O_RDWR|_O_BINARY -#ifdef WIN32 - |O_TRUNC -#endif - ,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; - } - } +// 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_SPEC)); +} +void file_delete(Pool& pool, const String& file_spec) { + const char *fname=file_spec.cstr(String::UL_FILE_SPEC); + if(unlink(fname)!=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_SPEC); + struct stat finfo; + if(access(fname, R_OK)==0 && stat(fname, &finfo)==0) { + bool is_dir=finfo.st_mode&S_IFDIR != 0; + return is_dir==need_dir; } - if(fname) - PTHROW(0, 0, - 0, - "file_write('%s'): %s (#%d)", - fname, strerror(errno), errno); - else - PTHROW(0, 0, - 0, - "file_write: no filename specified"); + return false; +} +bool file_readable(const String& file_spec) { + return entry_readable(file_spec, false); +} +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_SPEC), X_OK)==0; +} + +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_SPEC); + struct stat finfo; + if(stat(fname, &finfo)!=0) + 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) { @@ -154,9 +314,9 @@ char *getrow(char **row_ref, char delim) return result; } -char *lsplit(char *string_ref, char delim) { - if(string_ref) { - char *v=strchr(string_ref, delim); +char *lsplit(char *string, char delim) { + if(string) { + char *v=strchr(string, delim); if(v) { *v=0; return v+1; @@ -183,30 +343,31 @@ 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); + char *result=(char *)pool.malloc(MAX_NUMBER, 4); if(fmt) if(strpbrk(fmt, "diouxX")) if(strpbrk(fmt, "ouxX")) - snprintf(result, MAX_NUMBER, fmt,(uint)value ); + snprintf(result, MAX_NUMBER, fmt, (uint)value ); else - snprintf(result, MAX_NUMBER, fmt,(int)value ); + snprintf(result, MAX_NUMBER, fmt, (int)value ); else snprintf(result, MAX_NUMBER, fmt, value); else - snprintf(result, MAX_NUMBER, "%d",(int)value); + snprintf(result, MAX_NUMBER, "%d", (int)value); 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; @@ -215,11 +376,11 @@ size_t stdout_write(const char *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, + EscapeRest, + EscapeFirst, EscapeSecond } escapeState=EscapeRest; int escapedValue=0; @@ -253,29 +414,107 @@ 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::Untaint_lang::HEADER, true); - string->APPEND_CONST("="); - string->append(static_cast(avalue)->as_string(), - String::Untaint_lang::HEADER, true); -} -const String& attributed_meaning_string(Value *meaning) { - String &result=*new(meaning->pool()) String(meaning->pool()); - if(Hash *hash=meaning->get_hash()) { + *ami.header << "; "; + ami.header->append(akey, ami.lang); + *ami.header << "="; + 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(0)) { // $value(value) $subattribute(subattribute value) if(Value *value=static_cast(hash->get(*value_name))) - result.append(value->as_string(), String::Untaint_lang::HEADER, true); + result.append(value->as_string(), lang, true); - hash->foreach(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::Untaint_lang::HEADER, true); + result.append(meaning.as_string(), lang, true); return result; -} \ No newline at end of file +} + +#ifdef WIN32 +void back_slashes_to_slashes(char *s) { + if(s) + for(; *s; 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++; + } +} + +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