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Merge and aggregate number parsing logics to form hb-number

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This commit is contained in:
Ebrahim Byagowi 2019-09-03 01:02:40 +04:30
parent d50d2fcbc7
commit 43372fbb5a
6 changed files with 196 additions and 140 deletions
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2
src/Makefile.sources
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@ -49,6 +49,8 @@ HB_BASE_sources = \
hb-meta.hh \
hb-mutex.hh \
hb-null.hh \
hb-number.cc \
hb-number.hh \
hb-object.hh \
hb-open-file.hh \
hb-open-type.hh \

1
src/harfbuzz.cc
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@ -8,6 +8,7 @@
#include "hb-fallback-shape.cc"
#include "hb-font.cc"
#include "hb-map.cc"
#include "hb-number.cc"
#include "hb-ot-cff1-table.cc"
#include "hb-ot-cff2-table.cc"
#include "hb-ot-color.cc"

39
src/hb-buffer-serialize.cc
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@ -25,6 +25,7 @@
*/
#include "hb.hh"
#include "hb-number.hh"
#ifndef HB_NO_BUFFER_SERIALIZE
@ -379,43 +380,27 @@ hb_buffer_serialize_glyphs (hb_buffer_t *buffer,
}
}
static hb_bool_t
parse_uint (const char *pp, const char *end, uint32_t *pv)
static bool
parse_int (const char *pp, const char *end, int32_t *pv)
{
char buf[32];
unsigned int len = hb_min (ARRAY_LENGTH (buf) - 1, (unsigned int) (end - pp));
strncpy (buf, pp, len);
buf[len] = '\0';
int v;
const char *p = pp;
if (!hb_parse_int (&p, end, &v))
return false;
char *p = buf;
char *pend = p;
uint32_t v;
errno = 0;
v = strtol (p, &pend, 10);
if (errno || p == pend || pend - p != end - pp)
/* Check if parser consumed all of the buffer */
if (p != end)
return false;
*pv = v;
return true;
}
static hb_bool_t
parse_int (const char *pp, const char *end, int32_t *pv)
static bool
parse_uint (const char *pp, const char *end, uint32_t *pv)
{
char buf[32];
unsigned int len = hb_min (ARRAY_LENGTH (buf) - 1, (unsigned int) (end - pp));
strncpy (buf, pp, len);
buf[len] = '\0';
char *p = buf;
char *pend = p;
int32_t v;
errno = 0;
v = strtol (p, &pend, 10);
if (errno || p == pend || pend - p != end - pp)
if (!parse_int (pp, end, &v))
return false;
*pv = v;

121
src/hb-common.cc
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@ -27,8 +27,8 @@
*/
#include "hb.hh"
#include "hb-machinery.hh"
#include "hb-number.hh"
#include <locale.h>
#ifdef HAVE_XLOCALE_H
@ -722,131 +722,26 @@ parse_char (const char **pp, const char *end, char c)
static bool
parse_uint (const char **pp, const char *end, unsigned int *pv)
{
char buf[32];
unsigned int len = hb_min (ARRAY_LENGTH (buf) - 1, (unsigned int) (end - *pp));
strncpy (buf, *pp, len);
buf[len] = '\0';
char *p = buf;
char *pend = p;
unsigned int v;
/* Intentionally use strtol instead of strtoul, such that
/* Intentionally use strtol inside instead of strtoul, such that
* -1 turns into "big number"... */
errno = 0;
v = strtol (p, &pend, 10);
if (errno || p == pend)
int v;
if (!hb_parse_int (pp, end, &v))
return false;
*pv = v;
*pp += pend - p;
return true;
}
static bool
parse_uint32 (const char **pp, const char *end, uint32_t *pv)
{
char buf[32];
unsigned int len = hb_min (ARRAY_LENGTH (buf) - 1, (unsigned int) (end - *pp));
strncpy (buf, *pp, len);
buf[len] = '\0';
char *p = buf;
char *pend = p;
unsigned int v;
/* Intentionally use strtol instead of strtoul, such that
/* Intentionally use strtol inside instead of strtoul, such that
* -1 turns into "big number"... */
errno = 0;
v = strtol (p, &pend, 10);
if (errno || p == pend)
int v;
if (!hb_parse_int (pp, end, &v))
return false;
*pv = v;
*pp += pend - p;
return true;
}
#if defined (HAVE_NEWLOCALE) && defined (HAVE_STRTOD_L)
#define USE_XLOCALE 1
#define HB_LOCALE_T locale_t
#define HB_CREATE_LOCALE(locName) newlocale (LC_ALL_MASK, locName, nullptr)
#define HB_FREE_LOCALE(loc) freelocale (loc)
#elif defined(_MSC_VER)
#define USE_XLOCALE 1
#define HB_LOCALE_T _locale_t
#define HB_CREATE_LOCALE(locName) _create_locale (LC_ALL, locName)
#define HB_FREE_LOCALE(loc) _free_locale (loc)
#define strtod_l(a, b, c) _strtod_l ((a), (b), (c))
#endif
#ifdef USE_XLOCALE
#if HB_USE_ATEXIT
static void free_static_C_locale ();
#endif
static struct hb_C_locale_lazy_loader_t : hb_lazy_loader_t<hb_remove_pointer<HB_LOCALE_T>,
hb_C_locale_lazy_loader_t>
{
static HB_LOCALE_T create ()
{
HB_LOCALE_T C_locale = HB_CREATE_LOCALE ("C");
#if HB_USE_ATEXIT
atexit (free_static_C_locale);
#endif
return C_locale;
}
static void destroy (HB_LOCALE_T p)
{
HB_FREE_LOCALE (p);
}
static HB_LOCALE_T get_null ()
{
return nullptr;
}
} static_C_locale;
#if HB_USE_ATEXIT
static
void free_static_C_locale ()
{
static_C_locale.free_instance ();
}
#endif
static HB_LOCALE_T
get_C_locale ()
{
return static_C_locale.get_unconst ();
}
#endif /* USE_XLOCALE */
static bool
parse_float (const char **pp, const char *end, float *pv)
{
char buf[32];
unsigned int len = hb_min (ARRAY_LENGTH (buf) - 1, (unsigned int) (end - *pp));
strncpy (buf, *pp, len);
buf[len] = '\0';
char *p = buf;
char *pend = p;
float v;
errno = 0;
#ifdef USE_XLOCALE
v = strtod_l (p, &pend, get_C_locale ());
#else
v = strtod (p, &pend);
#endif
if (errno || p == pend)
return false;
*pv = v;
*pp += pend - p;
return true;
}
@ -1099,7 +994,7 @@ static bool
parse_variation_value (const char **pp, const char *end, hb_variation_t *variation)
{
parse_char (pp, end, '='); /* Optional. */
return parse_float (pp, end, &variation->value);
return hb_parse_float (pp, end, &variation->value);
}
static bool

138
src/hb-number.cc Normal file
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@ -0,0 +1,138 @@
/*
* Copyright © 2019 Ebrahim Byagowi
*
* This is part of HarfBuzz, a text shaping library.
*
* Permission is hereby granted, without written agreement and without
* license or royalty fees, to use, copy, modify, and distribute this
* software and its documentation for any purpose, provided that the
* above copyright notice and the following two paragraphs appear in
* all copies of this software.
*
* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
* DAMAGE.
*
* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
*
*/
#include "hb.hh"
#include "hb-machinery.hh"
#include "hb-number.hh"
#include <locale.h>
#ifdef HAVE_XLOCALE_H
#include <xlocale.h>
#endif
bool
hb_parse_int (const char **pp, const char *end, int *pv)
{
char buf[32];
unsigned int len = hb_min (ARRAY_LENGTH (buf) - 1, (unsigned int) (end - *pp));
strncpy (buf, *pp, len);
buf[len] = '\0';
char *p = buf;
char *pend = p;
int v;
errno = 0;
v = strtol (p, &pend, 10);
if (errno || p == pend)
return false;
*pv = v;
*pp += pend - p;
return true;
}
#if defined (HAVE_NEWLOCALE) && defined (HAVE_STRTOD_L)
#define USE_XLOCALE 1
#define HB_LOCALE_T locale_t
#define HB_CREATE_LOCALE(locName) newlocale (LC_ALL_MASK, locName, nullptr)
#define HB_FREE_LOCALE(loc) freelocale (loc)
#elif defined(_MSC_VER)
#define USE_XLOCALE 1
#define HB_LOCALE_T _locale_t
#define HB_CREATE_LOCALE(locName) _create_locale (LC_ALL, locName)
#define HB_FREE_LOCALE(loc) _free_locale (loc)
#define strtod_l(a, b, c) _strtod_l ((a), (b), (c))
#endif
#ifdef USE_XLOCALE
#if HB_USE_ATEXIT
static void free_static_C_locale ();
#endif
static struct hb_C_locale_lazy_loader_t : hb_lazy_loader_t<hb_remove_pointer<HB_LOCALE_T>,
hb_C_locale_lazy_loader_t>
{
static HB_LOCALE_T create ()
{
HB_LOCALE_T C_locale = HB_CREATE_LOCALE ("C");
#if HB_USE_ATEXIT
atexit (free_static_C_locale);
#endif
return C_locale;
}
static void destroy (HB_LOCALE_T p)
{
HB_FREE_LOCALE (p);
}
static HB_LOCALE_T get_null ()
{
return nullptr;
}
} static_C_locale;
#if HB_USE_ATEXIT
static
void free_static_C_locale ()
{
static_C_locale.free_instance ();
}
#endif
static HB_LOCALE_T
get_C_locale ()
{
return static_C_locale.get_unconst ();
}
#endif /* USE_XLOCALE */
bool
hb_parse_float (const char **pp, const char *end, float *pv)
{
char buf[32];
unsigned int len = hb_min (ARRAY_LENGTH (buf) - 1, (unsigned int) (end - *pp));
strncpy (buf, *pp, len);
buf[len] = '\0';
char *p = buf;
char *pend = p;
float v;
errno = 0;
#ifdef USE_XLOCALE
v = strtod_l (p, &pend, get_C_locale ());
#else
v = strtod (p, &pend);
#endif
if (errno || p == pend)
return false;
*pv = v;
*pp += pend - p;
return true;
}

35
src/hb-number.hh Normal file
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@ -0,0 +1,35 @@
/*
* Copyright © 2019 Ebrahim Byagowi
*
* This is part of HarfBuzz, a text shaping library.
*
* Permission is hereby granted, without written agreement and without
* license or royalty fees, to use, copy, modify, and distribute this
* software and its documentation for any purpose, provided that the
* above copyright notice and the following two paragraphs appear in
* all copies of this software.
*
* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
* DAMAGE.
*
* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
*
*/
#ifndef HB_NUMBER_HH
#define HB_NUMBER_HH
HB_INTERNAL bool
hb_parse_int (const char **pp, const char *end, int *pv);
HB_INTERNAL bool
hb_parse_float (const char **pp, const char *end, float *pv);
#endif /* HB_NUMBER_HH */