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1.26 paf 1:
1.15 paf 2: /** @file
1.16 paf 3: Parser: commonly functions.
4:
1.8 paf 5: Copyright(c) 2001 ArtLebedev Group(http://www.artlebedev.com)
1.16 paf 6:
1.8 paf 7: Author: Alexander Petrosyan <paf@design.ru>(http://design.ru/paf)
1.5 paf 8:
1.30 ! paf 9: $Id: pa_common.C,v 1.29 2001/03/24 20:08:14 paf Exp $
1.1 paf 10: */
11:
1.22 paf 12: #include "pa_config_includes.h"
1.1 paf 13:
1.2 paf 14: #include <fcntl.h>
15: #include <sys/stat.h>
16: #include <io.h>
1.1 paf 17: #include <stdio.h>
1.20 paf 18: #include <errno.h>
19:
1.1 paf 20: #include "pa_common.h"
1.2 paf 21: #include "pa_types.h"
1.4 paf 22: #include "pa_exception.h"
1.14 paf 23: #include "pa_pool.h"
24: #include "pa_globals.h"
25: #include "pa_value.h"
26: #include "pa_hash.h"
27: #include "pa_string.h"
1.1 paf 28:
1.22 paf 29: #if _MSC_VER
1.1 paf 30:
31: int __vsnprintf(char *b, size_t s, const char *f, va_list l) {
32: int r=_vsnprintf(b, --s, f, l);
33: b[s]=0;
34: return r;
35: }
36: int __snprintf(char *b, size_t s, const char *f, ...) {
37: va_list l;
38: va_start(l, f);
39: int r=__vsnprintf(b, s, f, l);
40: va_end(l);
41: return r;
42: }
43:
44: #endif
1.2 paf 45:
1.18 paf 46:
1.28 paf 47: char *file_read_text(Pool& pool, const String& file_spec, bool fail_on_read_problem) {
1.2 paf 48: int f;
49: struct stat finfo;
1.28 paf 50: char *fname=file_spec.cstr();
51: if(!stat(fname,&finfo) &&(f=open(fname,O_RDONLY
1.2 paf 52: #ifdef WIN32
53: |O_TEXT
54: #endif
1.8 paf 55: ))>=0) {
1.2 paf 56: /*if(exclusive)
57: flock(f, LOCK_EX);*/
58:
1.10 paf 59: char *result=(char *)pool.malloc(finfo.st_size+1);
1.2 paf 60: int read_size=read(f,result,finfo.st_size);
61: if(read_size>=0 && read_size<=finfo.st_size)
62: result[read_size]='\0';
63: /*if(exclusive)
64: flock(f, LOCK_UN);*/
65: close(f);
66: return result;//prepare_config(result, remove_empty_lines);
67: }
1.4 paf 68: if(fail_on_read_problem)
1.28 paf 69: PTHROW(0, 0,
70: &file_spec,
1.29 paf 71: "read failed: %s (#%d)", strerror(errno), errno);
1.8 paf 72: return 0;
73: }
74:
1.18 paf 75: void file_write(Pool& pool,
1.28 paf 76: const String& file_spec,
1.18 paf 77: const char *data, size_t size,
1.20 paf 78: bool as_text/*,
79: bool exclusive*/) {
1.28 paf 80: char *fname=file_spec.cstr();
81: int f;
82: if(access(fname, F_OK)!=0) {/*no*/
83: if((f=open(fname,O_WRONLY|O_CREAT|_O_BINARY,0666))>0)
84: close(f);
85: }
86: if(access(fname, R_OK|W_OK)==0) {
87: int mode=O_RDWR
1.18 paf 88: #ifdef WIN32
1.28 paf 89: |O_TRUNC
1.18 paf 90: #endif
1.28 paf 91: ;
92: mode|=as_text?_O_TEXT:_O_BINARY;
93: if((f=open(fname,mode,0666))>=0) {
94: /*if(exclusive)
95: flock(f, LOCK_EX);*/
96:
97: if(size) write(f,data,size);
1.18 paf 98: #ifndef WIN32
1.28 paf 99: ftruncate(f,size);
1.18 paf 100: #endif
1.28 paf 101: /*if(exclusive)
102: flock(f, LOCK_UN);*/
103: close(f);
104: return;
1.18 paf 105: }
106: }
1.28 paf 107: PTHROW(0, 0,
108: &file_spec,
1.29 paf 109: "write failed: %s (#%d)", strerror(errno), errno);
1.30 ! paf 110: }
! 111:
! 112: void file_delete(Pool& pool, const String& file_spec) {
! 113: if(unlink(file_spec.cstr())!=0)
! 114: PTHROW(0, 0,
! 115: &file_spec,
! 116: "unlink failed: %s (#%d)", strerror(errno), errno);
1.18 paf 117: }
118:
1.8 paf 119: char *getrow(char **row_ref, char delim) {
120: char *result=*row_ref;
121: if(result) {
122: *row_ref=strchr(result, delim);
123: if(*row_ref)
124: *((*row_ref)++)=0;
125: else if(!*result)
126: return 0;
127: }
128: return result;
129: }
130:
1.23 paf 131: char *lsplit(char *string, char delim) {
132: if(string) {
133: char *v=strchr(string, delim);
1.8 paf 134: if(v) {
135: *v=0;
136: return v+1;
137: }
138: }
139: return 0;
140: }
141:
142: char *lsplit(char **string_ref, char delim) {
143: char *result=*string_ref;
144: char *next=lsplit(*string_ref, delim);
145: *string_ref=next;
146: return result;
1.9 paf 147: }
148:
149: char *rsplit(char *string, char delim) {
1.18 paf 150: if(string) {
1.9 paf 151: char *v=strrchr(string, delim);
1.18 paf 152: if(v) {
1.9 paf 153: *v=0;
154: return v+1;
155: }
156: }
157: return NULL;
1.10 paf 158: }
159:
160: char *format(Pool& pool, double value, char *fmt) {
161: char *result=(char *)pool.malloc(MAX_NUMBER);
162: if(fmt)
163: if(strpbrk(fmt, "diouxX"))
164: if(strpbrk(fmt, "ouxX"))
1.18 paf 165: snprintf(result, MAX_NUMBER, fmt,(uint)value );
1.10 paf 166: else
1.18 paf 167: snprintf(result, MAX_NUMBER, fmt,(int)value );
1.10 paf 168: else
169: snprintf(result, MAX_NUMBER, fmt, value);
170: else
1.18 paf 171: snprintf(result, MAX_NUMBER, "%d",(int)value);
1.10 paf 172:
173: return result;
1.12 paf 174: }
175:
1.13 paf 176: size_t stdout_write(const char *buf, size_t size) {
1.12 paf 177: #ifdef WIN32
178: do{
179: int chunk_written=fwrite(buf, 1, min(8*0x400, size), stdout);
180: if(chunk_written<=0)
181: break;
182: size-=chunk_written;
183: buf+=chunk_written;
184: } while(size>0);
185:
186: return size;
187: #else
1.13 paf 188: return fwrite(buf, 1, size, stdout);
1.12 paf 189: #endif
1.2 paf 190: }
1.14 paf 191:
192: const char *unescape_chars(Pool& pool, const char *cp, int len) {
193: char *s=(char *)pool.malloc(len + 1);
194: enum EscapeState {
195: EscapeRest,
196: EscapeFirst,
197: EscapeSecond
198: } escapeState=EscapeRest;
199: int escapedValue=0;
200: int srcPos=0;
201: int dstPos=0;
202: while(srcPos < len) {
203: int ch=cp[srcPos];
204: switch(escapeState) {
205: case EscapeRest:
206: if(ch=='%') {
207: escapeState=EscapeFirst;
208: } else if(ch=='+') {
209: s[dstPos++]=' ';
210: } else {
211: s[dstPos++]=ch;
212: }
213: break;
214: case EscapeFirst:
215: escapedValue=hex_value[ch] << 4;
216: escapeState=EscapeSecond;
217: break;
218: case EscapeSecond:
219: escapedValue +=hex_value[ch];
220: s[dstPos++]=escapedValue;
221: escapeState=EscapeRest;
222: break;
223: }
224: srcPos++;
225: }
226: s[dstPos]=0;
227: return s;
228: }
229:
1.17 paf 230: static void append_attribute_subattribute(const Hash::Key& akey, Hash::Val *avalue,
1.14 paf 231: void *info) {
232: if(akey==VALUE_NAME)
233: return;
234:
235: // ...; charset=windows1251
236: String *string=static_cast<String *>(info);
237: string->APPEND_CONST("; ");
1.20 paf 238: string->append(akey, String::UL_HEADER, true);
1.14 paf 239: string->APPEND_CONST("=");
240: string->append(static_cast<Value *>(avalue)->as_string(),
1.20 paf 241: String::UL_HEADER, true);
1.14 paf 242: }
1.20 paf 243: const String& attributed_meaning_to_string(Value& meaning) {
244: String &result=*new(meaning.pool()) String(meaning.pool());
245: if(Hash *hash=meaning.get_hash()) {
1.14 paf 246: // $value(value) $subattribute(subattribute value)
247: if(Value *value=static_cast<Value *>(hash->get(*value_name)))
1.20 paf 248: result.append(value->as_string(), String::UL_HEADER, true);
1.14 paf 249:
1.25 paf 250: hash->for_each(append_attribute_subattribute, &result);
1.14 paf 251: } else // result value
1.20 paf 252: result.append(meaning.as_string(), String::UL_HEADER, true);
1.14 paf 253:
254: return result;
1.24 paf 255: }
256:
257: #ifdef WIN32
258: void back_slashes_to_slashes(char *s) {
259: if(s)
260: for(; *s; s++)
261: if(*s=='\\')
262: *s='/';
263: }
264: #endif