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// This file is part of The New Aspell
// Copyright (C) 2001 by Kevin Atkinson under the GNU LGPL license
// version 2.0 or 2.1. You should have received a copy of the LGPL
// license along with this library if you did not you can find
// it at http://www.gnu.org/.
#include <string.h>
#include "getdata.hpp"
#include "string.hpp"
#include "asc_ctype.hpp"
#include "iostream.hpp"
namespace acommon {
unsigned int linenumber = 0 ;
bool getdata_pair(IStream & in, DataPair & d, String & buf)
{
char * p;
// get first non blank line and count all read ones
do {
buf.clear();
buf.append('\0'); // to avoid some special cases
if (!in.append_line(buf)) return false;
d.line_num++;
p = buf.mstr() + 1;
while (*p == ' ' || *p == '\t') ++p;
} while (*p == '#' || *p == '\0');
// get key
d.key.str = p;
while (*p != '\0' &&
((*p != ' ' && *p != '\t' && *p != '#') || *(p-1) == '\\')) ++p;
d.key.size = p - d.key.str;
// figure out if there is a value and add terminate key
d.value.str = p; // in case there is no value
d.value.size = 0;
if (*p == '#' || *p == '\0') {*p = '\0'; return true;}
*p = '\0';
// skip any whitespace
++p;
while (*p == ' ' || *p == '\t') ++p;
if (*p == '\0' || *p == '#') {return true;}
// get value
d.value.str = p;
while (*p != '\0' && (*p != '#' || *(p-1) == '\\')) ++p;
// remove trailing white space and terminate value
--p;
while (*p == ' ' || *p == '\t') --p;
if (*p == '\\' && *(p + 1) != '\0') ++p;
++p;
d.value.size = p - d.value.str;
*p = '\0';
return true;
}
char * unescape(char * dest, const char * src)
{
while (*src) {
if (*src == '\\') {
++src;
switch (*src) {
case 'n': *dest = '\n'; break;
case 'r': *dest = '\r'; break;
case 't': *dest = '\t'; break;
case 'f': *dest = '\f'; break;
case 'v': *dest = '\v'; break;
default: *dest = *src;
}
} else {
*dest = *src;
}
++src;
++dest;
}
*dest = '\0';
return dest;
}
bool escape(char * dest, const char * src, size_t limit, const char * others)
{
const char * begin = src;
const char * end = dest + limit;
if (asc_isspace(*src)) {
if (dest == end) return false;
*dest++ = '\\';
if (dest == end) return false;
*dest++ = *src++;
}
while (*src) {
if (dest == end) return false;
switch (*src) {
case '\n': *dest++ = '\\'; *dest = 'n'; break;
case '\r': *dest++ = '\\'; *dest = 'r'; break;
case '\t': *dest++ = '\\'; *dest = 't'; break;
case '\f': *dest++ = '\\'; *dest = 'f'; break;
case '\v': *dest++ = '\\'; *dest = 'v'; break;
case '\\': *dest++ = '\\'; *dest = '\\'; break;
case '#' : *dest++ = '\\'; *dest = '#'; break;
default:
if (others && strchr(others, *src)) *dest++ = '\\';
*dest = *src;
}
++src;
++dest;
}
if (src > begin + 1 && asc_isspace(src[-1])) {
--dest;
*dest++ = '\\';
if (dest == end) return false;
*dest++ = src[-1];
}
*dest = '\0';
return true;
}
void to_lower(char * str)
{
for (; *str; str++) *str = asc_tolower(*str);
}
void to_lower(String & res, const char * str)
{
for (; *str; str++) res += asc_tolower(*str);
}
bool split(DataPair & d)
{
char * p = d.value;
char * end = p + d.value.size;
d.key.str = p;
while (p != end) {
++p;
if ((*p == ' ' || *p == '\t') && *(p-1) != '\\') break;
}
d.key.size = p - d.key.str;
*p = 0;
if (p != end) {
++p;
while (p != end && (*p == ' ' || *p == '\t')) ++p;
}
d.value.str = p;
d.value.size = end - p;
return d.key.size != 0;
}
void init(ParmString str, DataPair & d, String & buf)
{
const char * s = str;
while (*s == ' ' || *s == '\t') ++s;
size_t l = str.size() - (s - str);
buf.assign(s, l);
d.value.str = buf.mstr();
d.value.size = l;
}
bool getline(IStream & in, DataPair & d, String & buf)
{
if (!in.getline(buf)) return false;
d.value.str = buf.mstr();
d.value.size = buf.size();
return true;
}
char * get_nb_line(IStream & in, String & buf)
{
char * p;
// get first non blank line
do {
if (!in.getline(buf)) return 0;
p = buf.mstr();
while (*p == ' ' || *p == '\t') ++p;
} while (*p == '#' || *p == '\0');
return p;
}
void remove_comments(String & buf)
{
char * p = buf.mstr();
char * b = p;
while (*p && *p != '#') ++p;
if (*p == '#') {--p; while (p >= b && asc_isspace(*p)) --p; ++p;}
buf.resize(p - b);
}
}
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