-/*
- * Copyright (c) 1995-2003, Index Data.
+/* This file is part of the YAZ toolkit.
+ * Copyright (C) Index Data
* See the file LICENSE for details.
- *
- * $Id: wrbuf.c,v 1.2 2003-12-11 00:37:22 adam Exp $
*/
-/*
- * Growing buffer for writing various stuff.
+/**
+ * \file wrbuf.c
+ * \brief Implements WRBUF (growing buffer)
*/
#if HAVE_CONFIG_H
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
+#include <assert.h>
#include <yaz/wrbuf.h>
+#include <yaz/snprintf.h>
#include <yaz/yaz-iconv.h>
WRBUF wrbuf_alloc(void)
WRBUF n;
if (!(n = (WRBUF)xmalloc(sizeof(*n))))
- abort();
+ abort();
n->buf = 0;
n->size = 0;
n->pos = 0;
return n;
}
-void wrbuf_free(WRBUF b, int free_buf)
+void wrbuf_destroy(WRBUF b)
{
- if (free_buf && b->buf)
- xfree(b->buf);
- xfree(b);
+ if (b)
+ {
+ xfree(b->buf);
+ xfree(b);
+ }
}
void wrbuf_rewind(WRBUF b)
b->pos = 0;
}
-int wrbuf_grow(WRBUF b, int minsize)
+int wrbuf_grow(WRBUF b, size_t minsize)
{
- int togrow;
+ size_t togrow;
if (!b->size)
- togrow = 1024;
+ togrow = 1024;
else
- togrow = b->size;
+ togrow = b->size;
if (togrow < minsize)
- togrow = minsize;
+ togrow = minsize;
if (b->size && !(b->buf =(char *)xrealloc(b->buf, b->size += togrow)))
- abort();
+ abort();
else if (!b->size && !(b->buf = (char *)xmalloc(b->size = togrow)))
- abort();
+ abort();
return 0;
}
-int wrbuf_write(WRBUF b, const char *buf, int size)
+void wrbuf_write(WRBUF b, const char *buf, size_t size)
{
if (size <= 0)
- return 0;
+ return;
if (b->pos + size >= b->size)
- wrbuf_grow(b, size);
+ wrbuf_grow(b, size);
memcpy(b->buf + b->pos, buf, size);
b->pos += size;
- return 0;
}
-int wrbuf_puts(WRBUF b, const char *buf)
+void wrbuf_insert(WRBUF b, size_t pos, const char *buf, size_t size)
{
- wrbuf_write(b, buf, strlen(buf)+1); /* '\0'-terminate as well */
- (b->pos)--; /* don't include '\0' in count */
- return 0;
+ if (size <= 0 || pos > b->pos)
+ return;
+ if (b->pos + size >= b->size)
+ wrbuf_grow(b, size);
+ memmove(b->buf + pos + size, b->buf + pos, b->pos - pos);
+ memcpy(b->buf + pos, buf, size);
+ b->pos += size;
+}
+
+void wrbuf_puts(WRBUF b, const char *buf)
+{
+ wrbuf_write(b, buf, strlen(buf));
}
-int wrbuf_xmlputs(WRBUF b, const char *cp)
+void wrbuf_vp_puts(const char *buf, void *client_data)
{
- while (*cp)
+ WRBUF b = (WRBUF) client_data;
+ wrbuf_puts(b, buf);
+}
+
+void wrbuf_puts_replace_char(WRBUF b, const char *buf,
+ const char from, const char to)
+{
+ while(*buf)
{
- switch(*cp)
- {
- case '<':
- wrbuf_puts(b, "<");
- break;
- case '>':
- wrbuf_puts(b, ">");
- break;
- case '&':
- wrbuf_puts(b, "&");
- break;
- case '"':
- wrbuf_puts(b, """);
- break;
- case '\'':
- wrbuf_puts(b, "'");
- break;
- default:
- wrbuf_putc(b, *cp);
- }
- cp++;
+ if (*buf == from)
+ wrbuf_putc(b, to);
+ else
+ wrbuf_putc(b, *buf);
+ buf++;
+ }
+}
+
+void wrbuf_chop_right(WRBUF b)
+{
+ while (b->pos && b->buf[b->pos-1] == ' ')
+ {
+ (b->pos)--;
+ }
+}
+
+void wrbuf_xmlputs(WRBUF b, const char *cp)
+{
+ wrbuf_xmlputs_n(b, cp, strlen(cp));
+}
+
+void wrbuf_xmlputs_n(WRBUF b, const char *cp, size_t size)
+{
+ for (; size; size--)
+ {
+ /* only TAB,CR,LF of ASCII CTRL are allowed in XML 1.0! */
+ if (*cp >= 0 && *cp <= 31)
+ if (*cp != 9 && *cp != 10 && *cp != 13)
+ {
+ cp++; /* we silently ignore (delete) these.. */
+ continue;
+ }
+ switch(*cp)
+ {
+ case '<':
+ wrbuf_puts(b, "<");
+ break;
+ case '>':
+ wrbuf_puts(b, ">");
+ break;
+ case '&':
+ wrbuf_puts(b, "&");
+ break;
+ case '"':
+ wrbuf_puts(b, """);
+ break;
+ case '\'':
+ wrbuf_puts(b, "'");
+ break;
+ default:
+ wrbuf_putc(b, *cp);
+ }
+ cp++;
}
- wrbuf_putc(b, 0);
- (b->pos)--;
- return 0;
}
void wrbuf_printf(WRBUF b, const char *fmt, ...)
char buf[4096];
va_start(ap, fmt);
-#ifdef WIN32
- _vsnprintf(buf, sizeof(buf)-1, fmt, ap);
-#else
-/* !WIN32 */
-#if HAVE_VSNPRINTF
- vsnprintf(buf, sizeof(buf)-1, fmt, ap);
-#else
- vsprintf(buf, fmt, ap);
-#endif
-#endif
+ yaz_vsnprintf(buf, sizeof(buf)-1, fmt, ap);
wrbuf_puts (b, buf);
va_end(ap);
}
-int wrbuf_iconv_write(WRBUF b, yaz_iconv_t cd, const char *buf, int size)
+int wrbuf_iconv_write2(WRBUF b, yaz_iconv_t cd, const char *buf,
+ size_t size,
+ void (*wfunc)(WRBUF, const char *, size_t))
{
+ int ret = 0;
if (cd)
{
- char outbuf[12];
- size_t inbytesleft = size;
- const char *inp = buf;
- while (inbytesleft)
- {
- size_t outbytesleft = sizeof(outbuf);
- char *outp = outbuf;
- size_t r = yaz_iconv(cd, (char**) &inp, &inbytesleft,
- &outp, &outbytesleft);
- if (r == (size_t) (-1))
- {
- int e = yaz_iconv_error(cd);
- if (e != YAZ_ICONV_E2BIG)
- break;
- }
- wrbuf_write(b, outbuf, outp - outbuf);
- }
+ char outbuf[128];
+ size_t inbytesleft = size;
+ const char *inp = buf;
+ while (inbytesleft)
+ {
+ size_t outbytesleft = sizeof(outbuf);
+ char *outp = outbuf;
+ size_t r = yaz_iconv(cd, (char**) &inp, &inbytesleft,
+ &outp, &outbytesleft);
+ if (r == (size_t) (-1))
+ {
+ int e = yaz_iconv_error(cd);
+ if (e != YAZ_ICONV_E2BIG)
+ {
+ ret = -1;
+ break;
+ }
+ }
+ (*wfunc)(b, outbuf, outp - outbuf);
+ }
}
else
- wrbuf_write(b, buf, size);
- return wrbuf_len(b);
+ (*wfunc)(b, buf, size);
+ return ret;
+}
+
+int wrbuf_iconv_write_x(WRBUF b, yaz_iconv_t cd, const char *buf,
+ size_t size, int cdata)
+{
+ return wrbuf_iconv_write2(b, cd, buf, size,
+ cdata ? wrbuf_xmlputs_n : wrbuf_write);
}
+
+void wrbuf_iconv_write(WRBUF b, yaz_iconv_t cd, const char *buf, size_t size)
+{
+ wrbuf_iconv_write2(b, cd, buf, size, wrbuf_write);
+}
+
+void wrbuf_iconv_puts(WRBUF b, yaz_iconv_t cd, const char *strz)
+{
+ wrbuf_iconv_write(b, cd, strz, strlen(strz));
+}
+
+void wrbuf_iconv_putchar(WRBUF b, yaz_iconv_t cd, int ch)
+{
+ char buf[1];
+ buf[0] = ch;
+ wrbuf_iconv_write(b, cd, buf, 1);
+}
+
+void wrbuf_iconv_write_cdata(WRBUF b, yaz_iconv_t cd, const char *buf, size_t size)
+{
+ wrbuf_iconv_write2(b, cd, buf, size, wrbuf_xmlputs_n);
+}
+
+void wrbuf_iconv_puts_cdata(WRBUF b, yaz_iconv_t cd, const char *strz)
+{
+ wrbuf_iconv_write2(b, cd, strz, strlen(strz), wrbuf_xmlputs_n);
+}
+
+void wrbuf_iconv_json_write(WRBUF b, yaz_iconv_t cd,
+ const char *buf, size_t size)
+{
+ wrbuf_iconv_write2(b, cd, buf, size, wrbuf_json_write);
+}
+
+void wrbuf_iconv_json_puts(WRBUF b, yaz_iconv_t cd, const char *strz)
+{
+ wrbuf_iconv_write2(b, cd, strz, strlen(strz), wrbuf_json_write);
+}
+
+void wrbuf_iconv_reset(WRBUF b, yaz_iconv_t cd)
+{
+ if (cd)
+ {
+ char outbuf[16];
+ size_t outbytesleft = sizeof(outbuf);
+ char *outp = outbuf;
+ size_t r = yaz_iconv(cd, 0, 0, &outp, &outbytesleft);
+ if (r != (size_t) (-1))
+ wrbuf_write(b, outbuf, outp - outbuf);
+ }
+}
+
+const char *wrbuf_cstr(WRBUF b)
+{
+ if (b->pos >= b->size)
+ wrbuf_grow(b, 1);
+ b->buf[b->pos] = '\0';
+ return b->buf;
+}
+
+void wrbuf_cut_right(WRBUF b, size_t no_to_remove)
+{
+ if (no_to_remove > b->pos)
+ no_to_remove = b->pos;
+ b->pos = b->pos - no_to_remove;
+}
+
+void wrbuf_puts_escaped(WRBUF b, const char *str)
+{
+ wrbuf_write_escaped(b, str, strlen(str));
+}
+
+void wrbuf_write_escaped(WRBUF b, const char *str, size_t len)
+{
+ size_t i;
+ for (i = 0; i < len; i++)
+ if (str[i] < ' ' || str[i] > 126)
+ wrbuf_printf(b, "\\x%02X", str[i] & 0xff);
+ else
+ wrbuf_putc(b, str[i]);
+}
+
+void wrbuf_json_write(WRBUF b, const char *cp, size_t sz)
+{
+ size_t i;
+ for (i = 0; i < sz; i++)
+ {
+ if (cp[i] > 0 && cp[i] < 32)
+ {
+ wrbuf_putc(b, '\\');
+ switch (cp[i])
+ {
+ case '\b': wrbuf_putc(b, 'b'); break;
+ case '\f': wrbuf_putc(b, 'f'); break;
+ case '\n': wrbuf_putc(b, 'n'); break;
+ case '\r': wrbuf_putc(b, 'r'); break;
+ case '\t': wrbuf_putc(b, 't'); break;
+ default:
+ wrbuf_printf(b, "u%04x", cp[i]);
+ }
+ }
+ else if (cp[i] == '"')
+ {
+ wrbuf_putc(b, '\\'); wrbuf_putc(b, '"');
+ }
+ else if (cp[i] == '\\')
+ {
+ wrbuf_putc(b, '\\'); wrbuf_putc(b, '\\');
+ }
+ else
+ { /* leave encoding as raw UTF-8 */
+ wrbuf_putc(b, cp[i]);
+ }
+ }
+
+}
+
+void wrbuf_json_puts(WRBUF b, const char *str)
+{
+ wrbuf_json_write(b, str, strlen(str));
+}
+
+/*
+ * Local variables:
+ * c-basic-offset: 4
+ * c-file-style: "Stroustrup"
+ * indent-tabs-mode: nil
+ * End:
+ * vim: shiftwidth=4 tabstop=8 expandtab
+ */
+
projects / yaz-moved-to-github.git / blobdiff