diff options
Diffstat (limited to 'Build/source/texk/xdvipdfmx/src/pst_obj.c')
-rw-r--r-- | Build/source/texk/xdvipdfmx/src/pst_obj.c | 901 |
1 files changed, 0 insertions, 901 deletions
diff --git a/Build/source/texk/xdvipdfmx/src/pst_obj.c b/Build/source/texk/xdvipdfmx/src/pst_obj.c deleted file mode 100644 index 1534f522c43..00000000000 --- a/Build/source/texk/xdvipdfmx/src/pst_obj.c +++ /dev/null @@ -1,901 +0,0 @@ -/* - - This is dvipdfmx, an eXtended version of dvipdfm by Mark A. Wicks. - - Copyright (C) 2002-2012 by Jin-Hwan Cho and Shunsaku Hirata, - the dvipdfmx project team. - - Copyright (C) 1998, 1999 by Mark A. Wicks <mwicks@kettering.edu> - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. -*/ - -#include <string.h> -#include <stdlib.h> -#include <errno.h> - -#include "system.h" -#include "mem.h" -#include "error.h" -#include "dpxutil.h" -#include "pst.h" -#include "pst_obj.h" - -struct pst_obj -{ - pst_type type; - void *data; -}; - -static const char *pst_const_null = "null"; -static const char *pst_const_mark = "mark"; -/* -static const char *pst_const_true = "true"; -static const char *pst_const_false = "false"; -*/ - -typedef char * pst_null; -typedef struct { char value; } pst_boolean; -typedef struct { long value; } pst_integer; -typedef struct { double value; } pst_real; -typedef struct { char *value; } pst_name; -typedef struct -{ - long length; - unsigned char *value; -} pst_string; - - -/* BOOLEAN */ -static pst_boolean *pst_boolean_new (char value) ; -static void pst_boolean_release (pst_boolean *obj); -static long pst_boolean_IV (pst_boolean *obj); -static double pst_boolean_RV (pst_boolean *obj); -static unsigned char *pst_boolean_SV (pst_boolean *obj); -static long pst_boolean_length (pst_boolean *obj); -static void *pst_boolean_data_ptr(pst_boolean *obj); - -/* NUMBERS */ -static pst_integer *pst_integer_new (long value) ; -static void pst_integer_release (pst_integer *obj); -static long pst_integer_IV (pst_integer *obj); -static double pst_integer_RV (pst_integer *obj); -static unsigned char *pst_integer_SV (pst_integer *obj); -static unsigned int pst_integer_length (pst_integer *obj); -static void *pst_integer_data_ptr(pst_integer *obj); - -static pst_real *pst_real_new (double value) ; -static void pst_real_release (pst_real *obj); -static long pst_real_IV (pst_real *obj); -static double pst_real_RV (pst_real *obj); -static unsigned char *pst_real_SV (pst_real *obj); -static void *pst_real_data_ptr (pst_real *obj); -static unsigned int pst_real_length (pst_real *obj); - -/* NAME */ -static pst_name *pst_name_new (const char *name) ; -static void pst_name_release (pst_name *obj); -static long pst_name_IV (pst_name *obj); -static double pst_name_RV (pst_name *obj); -static unsigned char *pst_name_SV (pst_name *obj); -static void *pst_name_data_ptr (pst_name *obj); -static unsigned int pst_name_length (pst_name *obj); - -/* STRING */ -static pst_string *pst_string_parse_literal (unsigned char **inbuf, unsigned char *inbufend); -static pst_string *pst_string_parse_hex (unsigned char **inbuf, unsigned char *inbufend); - -static pst_string *pst_string_new (unsigned char *str, unsigned int len); -static void pst_string_release (pst_string *obj) ; -static long pst_string_IV (pst_string *obj) ; -static double pst_string_RV (pst_string *obj) ; -static unsigned char *pst_string_SV (pst_string *obj) ; -static void *pst_string_data_ptr (pst_string *obj) ; -static unsigned int pst_string_length (pst_string *obj) ; - - -#define TYPE_ERROR() ERROR("Operation not defined for this type of object.") - -pst_obj * -pst_new_obj (pst_type type, void *data) -{ - pst_obj *obj; - - obj = NEW(1, struct pst_obj); - obj->type = type; - obj->data = data; - - return obj; -} - -pst_obj * -pst_new_mark (void) -{ - char *q; - - q = NEW(strlen(pst_const_mark)+1, char); - strcpy(q, pst_const_mark); - return pst_new_obj(PST_TYPE_MARK, (void *)q); -} - -void -pst_release_obj (pst_obj *obj) -{ - ASSERT(obj); - switch (obj->type) { - case PST_TYPE_BOOLEAN: pst_boolean_release(obj->data); break; - case PST_TYPE_INTEGER: pst_integer_release(obj->data); break; - case PST_TYPE_REAL: pst_real_release(obj->data); break; - case PST_TYPE_NAME: pst_name_release(obj->data); break; - case PST_TYPE_STRING: pst_string_release(obj->data); break; - case PST_TYPE_NULL: - case PST_TYPE_MARK: - case PST_TYPE_UNKNOWN: - if (obj->data) - RELEASE(obj->data); - break; - default: - ERROR("Unrecognized object type: %d", obj->type); - } - RELEASE(obj); -} - -pst_type -pst_type_of (pst_obj *obj) -{ - ASSERT(obj); - return obj->type; -} - -long -pst_length_of (pst_obj *obj) -{ - long len = 0; - - ASSERT(obj); - switch (obj->type) { - case PST_TYPE_BOOLEAN: len = pst_boolean_length(obj->data); break; - case PST_TYPE_INTEGER: len = pst_integer_length(obj->data); break; - case PST_TYPE_REAL: len = pst_real_length(obj->data); break; - case PST_TYPE_NAME: len = pst_name_length(obj->data); break; - case PST_TYPE_STRING: len = pst_string_length(obj->data); break; - case PST_TYPE_NULL: - case PST_TYPE_MARK: - TYPE_ERROR(); - break; - case PST_TYPE_UNKNOWN: - len = strlen(obj->data); - break; - default: - ERROR("Unrecognized object type: %d", obj->type); - } - - return len; -} - -long -pst_getIV (pst_obj *obj) -{ - long iv = 0; - - ASSERT(obj); - switch (obj->type) { - case PST_TYPE_BOOLEAN: iv = pst_boolean_IV(obj->data); break; - case PST_TYPE_INTEGER: iv = pst_integer_IV(obj->data); break; - case PST_TYPE_REAL: iv = pst_real_IV(obj->data); break; - case PST_TYPE_NAME: iv = pst_name_IV(obj->data); break; - case PST_TYPE_STRING: iv = pst_string_IV(obj->data); break; - case PST_TYPE_NULL: - case PST_TYPE_MARK: - TYPE_ERROR(); - break; - case PST_TYPE_UNKNOWN: - ERROR("Cannot convert object of type UNKNOWN to integer value."); - break; - default: - ERROR("Unrecognized object type: %d", obj->type); - } - - return iv; -} - -double -pst_getRV (pst_obj *obj) -{ - double rv = 0.0; - - ASSERT(obj); - switch (obj->type) { - case PST_TYPE_BOOLEAN: rv = pst_boolean_RV(obj->data); break; - case PST_TYPE_INTEGER: rv = pst_integer_RV(obj->data); break; - case PST_TYPE_REAL: rv = pst_real_RV(obj->data); break; - case PST_TYPE_NAME: rv = pst_name_RV(obj->data); break; - case PST_TYPE_STRING: rv = pst_string_RV(obj->data); break; - case PST_TYPE_NULL: - case PST_TYPE_MARK: - TYPE_ERROR(); - break; - case PST_TYPE_UNKNOWN: - ERROR("Cannot convert object of type UNKNOWN to real value."); - break; - default: - ERROR("Unrecognized object type: %d", obj->type); - } - - return rv; -} - -/* Length can be obtained by pst_length_of(). */ -unsigned char * -pst_getSV (pst_obj *obj) -{ - unsigned char *sv = NULL; - - ASSERT(obj); - switch (obj->type) { - case PST_TYPE_BOOLEAN: sv = pst_boolean_SV(obj->data); break; - case PST_TYPE_INTEGER: sv = pst_integer_SV(obj->data); break; - case PST_TYPE_REAL: sv = pst_real_SV(obj->data); break; - case PST_TYPE_NAME: sv = pst_name_SV(obj->data); break; - case PST_TYPE_STRING: sv = pst_string_SV(obj->data); break; - case PST_TYPE_NULL: - case PST_TYPE_MARK: - TYPE_ERROR(); - break; - case PST_TYPE_UNKNOWN: - { - long len; - - len = strlen((char *) obj->data); - if (len > 0) { - sv = NEW(len+1, unsigned char); - memcpy(sv, obj->data, len); - sv[len] = '\0'; - } else { - sv = NULL; - } - break; - } - default: - ERROR("Unrecognized object type: %d", obj->type); - } - - return sv; -} - -void * -pst_data_ptr (pst_obj *obj) -{ - char *p = NULL; - - ASSERT(obj); - switch (obj->type) { - case PST_TYPE_BOOLEAN: p = pst_boolean_data_ptr(obj->data); break; - case PST_TYPE_INTEGER: p = pst_integer_data_ptr(obj->data); break; - case PST_TYPE_REAL: p = pst_real_data_ptr(obj->data); break; - case PST_TYPE_NAME: p = pst_name_data_ptr(obj->data); break; - case PST_TYPE_STRING: p = pst_string_data_ptr(obj->data); break; - case PST_TYPE_NULL: - case PST_TYPE_MARK: - TYPE_ERROR(); - break; - case PST_TYPE_UNKNOWN: - p = obj->data; - break; - default: - ERROR("Unrecognized object type: %d", obj->type); - } - - return (void *)p; -} - -/* BOOLEAN */ -static pst_boolean * -pst_boolean_new (char value) -{ - pst_boolean *obj; - obj = NEW(1, pst_boolean); - obj->value = value; - return obj; -} - -static void -pst_boolean_release (pst_boolean *obj) -{ - ASSERT(obj); - RELEASE(obj); -} - -static long -pst_boolean_IV (pst_boolean *obj) -{ - ASSERT(obj); - return (long) obj->value; -} - -static double -pst_boolean_RV (pst_boolean *obj) -{ - ASSERT(obj); - return (double) obj->value; -} - -static unsigned char * -pst_boolean_SV (pst_boolean *obj) -{ - unsigned char *str; - - ASSERT(obj); - - if (obj->value) { - str = NEW(5, unsigned char); - memcpy(str, "true", 4); - str[4] = '\0'; - } else { - str = NEW(6, unsigned char); - memcpy(str, "false", 5); - str[5] = '\0'; - } - - return str; -} - -static long -pst_boolean_length (pst_boolean *obj) -{ - TYPE_ERROR(); - return 0; -} - -static void * -pst_boolean_data_ptr (pst_boolean *obj) -{ - ASSERT(obj); - return (void*) &(obj->value); -} - -pst_obj * -pst_parse_boolean (unsigned char **inbuf, unsigned char *inbufend) -{ - if (*inbuf + 4 <= inbufend && - memcmp(*inbuf, "true", 4) == 0 && - PST_TOKEN_END(*inbuf + 4, inbufend)) { - *inbuf += 4; - return pst_new_obj(PST_TYPE_BOOLEAN, pst_boolean_new(1)); - } else if (*inbuf + 5 <= inbufend && - memcmp(*inbuf, "false", 5) == 0 && - PST_TOKEN_END(*inbuf + 5, inbufend)) { - *inbuf += 5; - return pst_new_obj(PST_TYPE_BOOLEAN, pst_boolean_new(0)); - } else - return NULL; -} - - -/* NULL */ -pst_obj * -pst_parse_null (unsigned char **inbuf, unsigned char *inbufend) -{ - if (*inbuf + 4 <= inbufend && - memcmp(*inbuf, "null", 4) == 0 && - PST_TOKEN_END(*inbuf+4, inbufend)) { - char *q; - - *inbuf += 4; - q = NEW(strlen(pst_const_null)+1, char); - strcpy(q, pst_const_null); - return pst_new_obj(PST_TYPE_NULL, (void*)q); - } else - return NULL; -} - -/* INTEGER */ -static pst_integer * -pst_integer_new (long value) -{ - pst_integer *obj; - obj = NEW(1, pst_integer); - obj->value = value; - return obj; -} - -static void -pst_integer_release (pst_integer *obj) -{ - ASSERT(obj); - RELEASE(obj); -} - -static long -pst_integer_IV (pst_integer *obj) -{ - ASSERT(obj); - return (long) obj->value; -} - -static double -pst_integer_RV (pst_integer *obj) -{ - ASSERT(obj); - return (double) obj->value; -} - -static unsigned char * -pst_integer_SV (pst_integer *obj) -{ - char *value; - int len; - char fmt_buf[PST_MAX_DIGITS+5]; - - ASSERT(obj); - - len = sprintf(fmt_buf, "%ld", obj->value); - - value = NEW(len, char); - strcpy(value, fmt_buf); - - return (unsigned char *) value; -} - -static void * -pst_integer_data_ptr (pst_integer *obj) -{ - ASSERT(obj); - return (void*) &(obj->value); -} - -static unsigned int -pst_integer_length (pst_integer *obj) -{ - TYPE_ERROR(); - return 0; -} - -/* REAL */ -static pst_real * -pst_real_new (double value) -{ - pst_real *obj; - - obj = NEW(1, pst_real); - obj->value = value; - - return obj; -} - -static void -pst_real_release (pst_real *obj) -{ - ASSERT(obj); - RELEASE(obj); -} - -static long -pst_real_IV (pst_real *obj) -{ - ASSERT(obj); - return (long) obj->value; -} - -static double -pst_real_RV (pst_real *obj) -{ - ASSERT(obj); - return (double) obj->value; -} - -static unsigned char * -pst_real_SV (pst_real *obj) -{ - char *value; - int len; - char fmt_buf[PST_MAX_DIGITS+5]; - - ASSERT(obj); - - len = sprintf(fmt_buf, "%.5g", obj->value); - - value = NEW(len, char); - strcpy(value, fmt_buf); - - return (unsigned char *) value; -} - -static void * -pst_real_data_ptr (pst_real *obj) -{ - ASSERT(obj); - - return (void*) &(obj->value); -} - -static unsigned int -pst_real_length (pst_real *obj) -{ - TYPE_ERROR(); - return 0; -} - -/* NOTE: the input buffer must be null-terminated, i.e., *inbufend == 0 */ -/* leading white-space is ignored */ -pst_obj * -pst_parse_number (unsigned char **inbuf, unsigned char *inbufend) -{ - unsigned char *cur; - long lval; - double dval; - - errno = 0; - lval = strtol((char *) *inbuf, (char **) (void *) &cur, 10); - if (errno || *cur == '.' || *cur == 'e' || *cur == 'E') { - /* real */ - errno = 0; - dval = strtod((char *) *inbuf, (char **) (void *) &cur); - if (!errno && PST_TOKEN_END(cur, inbufend)) { - *inbuf = cur; - return pst_new_obj(PST_TYPE_REAL, pst_real_new(dval)); - } - } else if (cur != *inbuf && PST_TOKEN_END(cur, inbufend)) { - /* integer */ - *inbuf = cur; - return pst_new_obj(PST_TYPE_INTEGER, pst_integer_new(lval)); - } else if (lval >= 2 && lval <= 36 && *cur == '#' && isalnum(*++cur) && - /* strtod allows leading "0x" for hex numbers, but we don't */ - (lval != 16 || (cur[1] != 'x' && cur[1] != 'X'))) { - /* integer with radix */ - /* Can the base have a (plus) sign? I think yes. */ - errno = 0; - lval = strtol((char *) cur, (char **) (void *) &cur, lval); - if (!errno && PST_TOKEN_END(cur, inbufend)) { - *inbuf = cur; - return pst_new_obj(PST_TYPE_INTEGER, pst_integer_new(lval)); - } - } - /* error */ - return NULL; -} - -/* NAME */ - -/* - * \0 is not allowed for name object. - */ - -static pst_name * -pst_name_new (const char *name) -{ - pst_name *obj; - - obj = NEW(1, pst_name); - obj->value = NEW(strlen(name)+1, char); - strcpy(obj->value, name); - - return obj; -} - -static void -pst_name_release (pst_name *obj) -{ - ASSERT(obj); - if (obj->value) - RELEASE(obj->value); - RELEASE(obj); -} - -#if 0 -int -pst_name_is_valid (const char *name) -{ - static const char *valid_chars = - "!\"#$&'*+,-.0123456789:;=?@ABCDEFGHIJKLMNOPQRSTUVWXYZ\\^_`abcdefghijklmnopqrstuvwxyz|~"; - if (strspn(name, valid_chars) == strlen(name)) - return 1; - else - return 0; -} - -char * -pst_name_encode (const char *name) -{ - char *encoded_name, *p; - int i, len; - char c; - - len = strlen(name); - if (len > PST_NAME_LEN_MAX) { - WARN("Input string too long for name object. String will be truncated."); - len = PST_NAME_LEN_MAX; - } - - p = encoded_name = NEW(3*len+1, char); - for (i = 0; i < len; i++) { - c = name[i]; - if (c < '!' || c > '~' || - c == '#' || is_delim(c) || is_space(c)) { - *p++ = '#'; - putxpair(c, &p); - } else { - *p++ = c; - } - } - *p = '\0'; - - return encoded_name; -} -#endif - -pst_obj * -pst_parse_name (unsigned char **inbuf, unsigned char *inbufend) /* / is required */ -{ - unsigned char wbuf[PST_NAME_LEN_MAX+1]; - unsigned char c, *p = wbuf, *cur = *inbuf; - int len = 0; - - if (*cur != '/') - return NULL; - cur++; - - while (!PST_TOKEN_END(cur, inbufend)) { - c = *cur++; - if (c == '#') { - int val; - if (cur + 2 >= inbufend) { - WARN("Premature end of input name string."); - break; - } - val = getxpair(&cur); - if (val <= 0) { - WARN("Invalid char for name object. (ignored)"); - continue; - } else - c = (unsigned char) val; - } - if (len < PST_NAME_LEN_MAX) - *p++ = c; - len++; - } - *p = '\0'; - - if (len > PST_NAME_LEN_MAX) - WARN("String too long for name object. Output will be truncated."); - - *inbuf = cur; - return pst_new_obj(PST_TYPE_NAME, pst_name_new((char *)wbuf)); -} - -static long -pst_name_IV (pst_name *obj) -{ - TYPE_ERROR(); - return 0; -} - -static double -pst_name_RV (pst_name *obj) -{ - TYPE_ERROR(); - return 0; -} - -static unsigned char * -pst_name_SV (pst_name *obj) -{ - char *value; - - value = NEW(strlen(obj->value)+1, char); - strcpy(value, obj->value); - - return (unsigned char *) value; -} - -static void * -pst_name_data_ptr (pst_name *obj) -{ - ASSERT(obj); - return obj->value; -} - -static unsigned int -pst_name_length (pst_name *obj) -{ - ASSERT(obj); - return strlen(obj->value); -} - - -/* STRING */ - -/* - * TODO: ascii85 string <~ .... ~> - */ -static pst_string * -pst_string_new (unsigned char *str, unsigned int len) -{ - pst_string *obj; - obj = NEW(1, pst_string); - obj->length = len; - obj->value = NULL; - if (len > 0) { - obj->value = NEW(len, unsigned char); - if (str) - memcpy(obj->value, str, len); - } - return obj; -} - -static void -pst_string_release (pst_string *obj) -{ - ASSERT(obj); - if (obj->value) - RELEASE(obj->value); - RELEASE(obj); -} - -pst_obj * -pst_parse_string (unsigned char **inbuf, unsigned char *inbufend) -{ - if (*inbuf + 2 >= inbufend) { - return NULL; - } else if (**inbuf == '(') - return pst_new_obj(PST_TYPE_STRING, pst_string_parse_literal(inbuf, inbufend)); - else if (**inbuf == '<' && *(*inbuf+1) == '~') - ERROR("ASCII85 string not supported yet."); - else if (**inbuf == '<') - return pst_new_obj(PST_TYPE_STRING, pst_string_parse_hex(inbuf, inbufend)); - return NULL; -} - -static pst_string * -pst_string_parse_literal (unsigned char **inbuf, unsigned char *inbufend) -{ - unsigned char wbuf[PST_STRING_LEN_MAX]; - unsigned char *cur = *inbuf, c = 0; - long len = 0, balance = 1; - - if (cur + 2 > inbufend || *cur != '(') - return NULL; - - cur++; - while (cur < inbufend && len < PST_STRING_LEN_MAX && balance > 0) { - c = *(cur++); - switch (c) { - case '\\': - { - unsigned char unescaped, valid; - unescaped = esctouc(&cur, inbufend, &valid); - if (valid) - wbuf[len++] = unescaped; - } - break; - case '(': - balance++; - wbuf[len++] = '('; - break; - case ')': - balance--; - if (balance > 0) - wbuf[len++] = ')'; - break; - /* - * An end-of-line marker (\n, \r or \r\n), not preceeded by a backslash, - * must be converted to single \n. - */ - case '\r': - if (cur < inbufend && *cur == '\n') - cur++; - wbuf[len++] = '\n'; - break; - default: - wbuf[len++] = c; - } - } - if (c != ')') - return NULL; - - *inbuf = cur; - return pst_string_new(wbuf, len); -} - -static pst_string * -pst_string_parse_hex (unsigned char **inbuf, unsigned char *inbufend) -{ - unsigned char wbuf[PST_STRING_LEN_MAX]; - unsigned char *cur = *inbuf; - unsigned long len = 0; - - if (cur + 2 > inbufend || *cur != '<' || - (*cur == '<' && *(cur+1) == '<')) - return NULL; - - cur++; - /* PDF Reference does not specify how to treat invalid char */ - while (cur < inbufend && len < PST_STRING_LEN_MAX) { - int hi, lo; - skip_white_spaces(&cur, inbufend); - if (*cur == '>') - break; - hi = xtoi(*(cur++)); - if (hi < 0) { - WARN("Invalid char for hex string <%x> treated as <0>.", *(cur-1)); - hi = 0; - } - skip_white_spaces(&cur, inbufend); - if (*cur == '>') - break; - /* 0 is appended if final hex digit is missing */ - lo = (cur < inbufend) ? xtoi(*(cur++)) : 0; - if (lo < 0) { - WARN("Invalid char for hex string <%x> treated as <0>.", *(cur-1)); - lo = 0; - } - wbuf[len++] = (hi << 4) | lo; - } - if (*cur++ != '>') - return NULL; - - *inbuf = cur; - return pst_string_new(wbuf, len); -} - -static long -pst_string_IV (pst_string *obj) -{ - return (long) pst_string_RV(obj); -} - -static double -pst_string_RV (pst_string *obj) -{ - pst_obj *nobj; - unsigned char *p, *end; - double rv; - - ASSERT(obj); - p = obj->value; - end = p + obj->length; - nobj = pst_parse_number(&p, end); - if (nobj == NULL || p != end) - ERROR("Cound not convert string to real value."); - rv = pst_getRV(nobj); - pst_release_obj(nobj); - - return rv; -} - -static unsigned char * -pst_string_SV (pst_string *obj) -{ - unsigned char *str = NULL; - ASSERT(obj); - str = NEW(obj->length + 1, unsigned char); - memcpy(str, obj->value, obj->length); - str[obj->length] = '\0'; - return str; -} - -static void * -pst_string_data_ptr (pst_string *obj) -{ - ASSERT(obj); - return obj->value; -} - -static unsigned int -pst_string_length (pst_string *obj) -{ - ASSERT(obj); - return obj->length; -} |