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zoff99 |
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/* Formatted output to strings.
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Copyright (C) 1999-2000, 2002-2003 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify it
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under the terms of the GNU Library General Public License as published
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by the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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USA. */
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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/* Specification. */
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#if WIDE_CHAR_VERSION
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# include "wprintf-parse.h"
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#else
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# include "printf-parse.h"
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#endif
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/* Get size_t, NULL. */
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#include <stddef.h>
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/* Get intmax_t. */
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#if HAVE_STDINT_H_WITH_UINTMAX
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# include <stdint.h>
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#endif
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#if HAVE_INTTYPES_H_WITH_UINTMAX
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# include <inttypes.h>
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#endif
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40 |
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41 |
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/* malloc(), realloc(), free(). */
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#include <stdlib.h>
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44 |
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/* Checked size_t computations. */
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#include "xsize.h"
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#if WIDE_CHAR_VERSION
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# define PRINTF_PARSE wprintf_parse
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# define CHAR_T wchar_t
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# define DIRECTIVE wchar_t_directive
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# define DIRECTIVES wchar_t_directives
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#else
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# define PRINTF_PARSE printf_parse
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54 |
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# define CHAR_T char
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55 |
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# define DIRECTIVE char_directive
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# define DIRECTIVES char_directives
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#endif
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58 |
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59 |
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#ifdef STATIC
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STATIC
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#endif
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int
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PRINTF_PARSE (const CHAR_T *format, DIRECTIVES *d, arguments *a)
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64 |
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{
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const CHAR_T *cp = format; /* pointer into format */
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66 |
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size_t arg_posn = 0; /* number of regular arguments consumed */
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size_t d_allocated; /* allocated elements of d->dir */
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68 |
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size_t a_allocated; /* allocated elements of a->arg */
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69 |
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size_t max_width_length = 0;
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70 |
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size_t max_precision_length = 0;
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71 |
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72 |
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d->count = 0;
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d_allocated = 1;
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74 |
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d->dir = malloc (d_allocated * sizeof (DIRECTIVE));
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75 |
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if (d->dir == NULL)
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76 |
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/* Out of memory. */
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77 |
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return -1;
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78 |
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79 |
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a->count = 0;
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80 |
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a_allocated = 0;
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81 |
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a->arg = NULL;
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82 |
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83 |
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#define REGISTER_ARG(_index_,_type_) \
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84 |
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{ \
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85 |
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size_t n = (_index_); \
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86 |
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if (n >= a_allocated) \
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87 |
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{ \
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88 |
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size_t memory_size; \
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89 |
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argument *memory; \
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90 |
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\
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91 |
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a_allocated = xtimes (a_allocated, 2); \
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92 |
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if (a_allocated <= n) \
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93 |
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a_allocated = xsum (n, 1); \
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94 |
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memory_size = xtimes (a_allocated, sizeof (argument)); \
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95 |
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if (size_overflow_p (memory_size)) \
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96 |
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/* Overflow, would lead to out of memory. */ \
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97 |
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goto error; \
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98 |
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memory = (a->arg \
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99 |
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? realloc (a->arg, memory_size) \
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100 |
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: malloc (memory_size)); \
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101 |
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if (memory == NULL) \
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102 |
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/* Out of memory. */ \
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103 |
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goto error; \
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104 |
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a->arg = memory; \
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105 |
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} \
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106 |
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while (a->count <= n) \
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107 |
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a->arg[a->count++].type = TYPE_NONE; \
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108 |
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if (a->arg[n].type == TYPE_NONE) \
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109 |
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a->arg[n].type = (_type_); \
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110 |
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else if (a->arg[n].type != (_type_)) \
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111 |
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/* Ambiguous type for positional argument. */ \
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112 |
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goto error; \
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113 |
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}
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114 |
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115 |
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while (*cp != '\0')
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116 |
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{
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117 |
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CHAR_T c = *cp++;
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118 |
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if (c == '%')
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119 |
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{
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120 |
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size_t arg_index = ARG_NONE;
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121 |
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DIRECTIVE *dp = &d->dir[d->count];/* pointer to next directive */
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122 |
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123 |
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/* Initialize the next directive. */
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124 |
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dp->dir_start = cp - 1;
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125 |
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dp->flags = 0;
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126 |
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dp->width_start = NULL;
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127 |
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dp->width_end = NULL;
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128 |
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dp->width_arg_index = ARG_NONE;
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129 |
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dp->precision_start = NULL;
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130 |
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dp->precision_end = NULL;
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131 |
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dp->precision_arg_index = ARG_NONE;
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132 |
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dp->arg_index = ARG_NONE;
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133 |
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134 |
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/* Test for positional argument. */
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135 |
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if (*cp >= '0' && *cp <= '9')
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136 |
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{
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137 |
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const CHAR_T *np;
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138 |
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139 |
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for (np = cp; *np >= '0' && *np <= '9'; np++)
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140 |
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;
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141 |
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if (*np == '$')
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142 |
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{
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143 |
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size_t n = 0;
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144 |
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145 |
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for (np = cp; *np >= '0' && *np <= '9'; np++)
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146 |
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n = xsum (xtimes (n, 10), *np - '0');
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147 |
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if (n == 0)
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148 |
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/* Positional argument 0. */
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149 |
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goto error;
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150 |
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if (size_overflow_p (n))
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151 |
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/* n too large, would lead to out of memory later. */
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152 |
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goto error;
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153 |
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arg_index = n - 1;
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154 |
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cp = np + 1;
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155 |
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}
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156 |
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}
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157 |
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158 |
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/* Read the flags. */
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159 |
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for (;;)
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160 |
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{
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161 |
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if (*cp == '\'')
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162 |
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{
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163 |
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dp->flags |= FLAG_GROUP;
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164 |
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cp++;
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165 |
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}
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166 |
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else if (*cp == '-')
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167 |
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{
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168 |
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dp->flags |= FLAG_LEFT;
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169 |
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cp++;
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170 |
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}
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171 |
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else if (*cp == '+')
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172 |
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{
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173 |
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dp->flags |= FLAG_SHOWSIGN;
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174 |
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cp++;
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175 |
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}
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176 |
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else if (*cp == ' ')
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177 |
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{
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178 |
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dp->flags |= FLAG_SPACE;
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179 |
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cp++;
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180 |
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}
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181 |
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else if (*cp == '#')
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182 |
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{
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183 |
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dp->flags |= FLAG_ALT;
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184 |
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cp++;
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185 |
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}
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186 |
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else if (*cp == '0')
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187 |
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{
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188 |
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dp->flags |= FLAG_ZERO;
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189 |
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cp++;
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190 |
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}
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191 |
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else
|
192 |
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break;
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193 |
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}
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194 |
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|
195 |
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/* Parse the field width. */
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196 |
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if (*cp == '*')
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197 |
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{
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198 |
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dp->width_start = cp;
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199 |
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cp++;
|
200 |
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dp->width_end = cp;
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201 |
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if (max_width_length < 1)
|
202 |
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max_width_length = 1;
|
203 |
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|
204 |
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/* Test for positional argument. */
|
205 |
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if (*cp >= '0' && *cp <= '9')
|
206 |
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{
|
207 |
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|
const CHAR_T *np;
|
208 |
|
|
|
209 |
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for (np = cp; *np >= '0' && *np <= '9'; np++)
|
210 |
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;
|
211 |
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if (*np == '$')
|
212 |
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{
|
213 |
|
|
size_t n = 0;
|
214 |
|
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|
215 |
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for (np = cp; *np >= '0' && *np <= '9'; np++)
|
216 |
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n = xsum (xtimes (n, 10), *np - '0');
|
217 |
|
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if (n == 0)
|
218 |
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|
/* Positional argument 0. */
|
219 |
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goto error;
|
220 |
|
|
if (size_overflow_p (n))
|
221 |
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|
/* n too large, would lead to out of memory later. */
|
222 |
|
|
goto error;
|
223 |
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dp->width_arg_index = n - 1;
|
224 |
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|
cp = np + 1;
|
225 |
|
|
}
|
226 |
|
|
}
|
227 |
|
|
if (dp->width_arg_index == ARG_NONE)
|
228 |
|
|
{
|
229 |
|
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dp->width_arg_index = arg_posn++;
|
230 |
|
|
if (dp->width_arg_index == ARG_NONE)
|
231 |
|
|
/* arg_posn wrapped around. */
|
232 |
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goto error;
|
233 |
|
|
}
|
234 |
|
|
REGISTER_ARG (dp->width_arg_index, TYPE_INT);
|
235 |
|
|
}
|
236 |
|
|
else if (*cp >= '0' && *cp <= '9')
|
237 |
|
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{
|
238 |
|
|
size_t width_length;
|
239 |
|
|
|
240 |
|
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dp->width_start = cp;
|
241 |
|
|
for (; *cp >= '0' && *cp <= '9'; cp++)
|
242 |
|
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;
|
243 |
|
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dp->width_end = cp;
|
244 |
|
|
width_length = dp->width_end - dp->width_start;
|
245 |
|
|
if (max_width_length < width_length)
|
246 |
|
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max_width_length = width_length;
|
247 |
|
|
}
|
248 |
|
|
|
249 |
|
|
/* Parse the precision. */
|
250 |
|
|
if (*cp == '.')
|
251 |
|
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{
|
252 |
|
|
cp++;
|
253 |
|
|
if (*cp == '*')
|
254 |
|
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{
|
255 |
|
|
dp->precision_start = cp - 1;
|
256 |
|
|
cp++;
|
257 |
|
|
dp->precision_end = cp;
|
258 |
|
|
if (max_precision_length < 2)
|
259 |
|
|
max_precision_length = 2;
|
260 |
|
|
|
261 |
|
|
/* Test for positional argument. */
|
262 |
|
|
if (*cp >= '0' && *cp <= '9')
|
263 |
|
|
{
|
264 |
|
|
const CHAR_T *np;
|
265 |
|
|
|
266 |
|
|
for (np = cp; *np >= '0' && *np <= '9'; np++)
|
267 |
|
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;
|
268 |
|
|
if (*np == '$')
|
269 |
|
|
{
|
270 |
|
|
size_t n = 0;
|
271 |
|
|
|
272 |
|
|
for (np = cp; *np >= '0' && *np <= '9'; np++)
|
273 |
|
|
n = xsum (xtimes (n, 10), *np - '0');
|
274 |
|
|
if (n == 0)
|
275 |
|
|
/* Positional argument 0. */
|
276 |
|
|
goto error;
|
277 |
|
|
if (size_overflow_p (n))
|
278 |
|
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/* n too large, would lead to out of memory
|
279 |
|
|
later. */
|
280 |
|
|
goto error;
|
281 |
|
|
dp->precision_arg_index = n - 1;
|
282 |
|
|
cp = np + 1;
|
283 |
|
|
}
|
284 |
|
|
}
|
285 |
|
|
if (dp->precision_arg_index == ARG_NONE)
|
286 |
|
|
{
|
287 |
|
|
dp->precision_arg_index = arg_posn++;
|
288 |
|
|
if (dp->precision_arg_index == ARG_NONE)
|
289 |
|
|
/* arg_posn wrapped around. */
|
290 |
|
|
goto error;
|
291 |
|
|
}
|
292 |
|
|
REGISTER_ARG (dp->precision_arg_index, TYPE_INT);
|
293 |
|
|
}
|
294 |
|
|
else
|
295 |
|
|
{
|
296 |
|
|
size_t precision_length;
|
297 |
|
|
|
298 |
|
|
dp->precision_start = cp - 1;
|
299 |
|
|
for (; *cp >= '0' && *cp <= '9'; cp++)
|
300 |
|
|
;
|
301 |
|
|
dp->precision_end = cp;
|
302 |
|
|
precision_length = dp->precision_end - dp->precision_start;
|
303 |
|
|
if (max_precision_length < precision_length)
|
304 |
|
|
max_precision_length = precision_length;
|
305 |
|
|
}
|
306 |
|
|
}
|
307 |
|
|
|
308 |
|
|
{
|
309 |
|
|
arg_type type;
|
310 |
|
|
|
311 |
|
|
/* Parse argument type/size specifiers. */
|
312 |
|
|
{
|
313 |
|
|
int flags = 0;
|
314 |
|
|
|
315 |
|
|
for (;;)
|
316 |
|
|
{
|
317 |
|
|
if (*cp == 'h')
|
318 |
|
|
{
|
319 |
|
|
flags |= (1 << (flags & 1));
|
320 |
|
|
cp++;
|
321 |
|
|
}
|
322 |
|
|
else if (*cp == 'L')
|
323 |
|
|
{
|
324 |
|
|
flags |= 4;
|
325 |
|
|
cp++;
|
326 |
|
|
}
|
327 |
|
|
else if (*cp == 'l')
|
328 |
|
|
{
|
329 |
|
|
flags += 8;
|
330 |
|
|
cp++;
|
331 |
|
|
}
|
332 |
|
|
#ifdef HAVE_INTMAX_T
|
333 |
|
|
else if (*cp == 'j')
|
334 |
|
|
{
|
335 |
|
|
if (sizeof (intmax_t) > sizeof (long))
|
336 |
|
|
{
|
337 |
|
|
/* intmax_t = long long */
|
338 |
|
|
flags += 16;
|
339 |
|
|
}
|
340 |
|
|
else if (sizeof (intmax_t) > sizeof (int))
|
341 |
|
|
{
|
342 |
|
|
/* intmax_t = long */
|
343 |
|
|
flags += 8;
|
344 |
|
|
}
|
345 |
|
|
cp++;
|
346 |
|
|
}
|
347 |
|
|
#endif
|
348 |
|
|
else if (*cp == 'z' || *cp == 'Z')
|
349 |
|
|
{
|
350 |
|
|
/* 'z' is standardized in ISO C 99, but glibc uses 'Z'
|
351 |
|
|
because the warning facility in gcc-2.95.2 understands
|
352 |
|
|
only 'Z' (see gcc-2.95.2/gcc/c-common.c:1784). */
|
353 |
|
|
if (sizeof (size_t) > sizeof (long))
|
354 |
|
|
{
|
355 |
|
|
/* size_t = long long */
|
356 |
|
|
flags += 16;
|
357 |
|
|
}
|
358 |
|
|
else if (sizeof (size_t) > sizeof (int))
|
359 |
|
|
{
|
360 |
|
|
/* size_t = long */
|
361 |
|
|
flags += 8;
|
362 |
|
|
}
|
363 |
|
|
cp++;
|
364 |
|
|
}
|
365 |
|
|
else if (*cp == 't')
|
366 |
|
|
{
|
367 |
|
|
if (sizeof (ptrdiff_t) > sizeof (long))
|
368 |
|
|
{
|
369 |
|
|
/* ptrdiff_t = long long */
|
370 |
|
|
flags += 16;
|
371 |
|
|
}
|
372 |
|
|
else if (sizeof (ptrdiff_t) > sizeof (int))
|
373 |
|
|
{
|
374 |
|
|
/* ptrdiff_t = long */
|
375 |
|
|
flags += 8;
|
376 |
|
|
}
|
377 |
|
|
cp++;
|
378 |
|
|
}
|
379 |
|
|
else
|
380 |
|
|
break;
|
381 |
|
|
}
|
382 |
|
|
|
383 |
|
|
/* Read the conversion character. */
|
384 |
|
|
c = *cp++;
|
385 |
|
|
switch (c)
|
386 |
|
|
{
|
387 |
|
|
case 'd': case 'i':
|
388 |
|
|
#ifdef HAVE_LONG_LONG
|
389 |
|
|
if (flags >= 16 || (flags & 4))
|
390 |
|
|
type = TYPE_LONGLONGINT;
|
391 |
|
|
else
|
392 |
|
|
#endif
|
393 |
|
|
if (flags >= 8)
|
394 |
|
|
type = TYPE_LONGINT;
|
395 |
|
|
else if (flags & 2)
|
396 |
|
|
type = TYPE_SCHAR;
|
397 |
|
|
else if (flags & 1)
|
398 |
|
|
type = TYPE_SHORT;
|
399 |
|
|
else
|
400 |
|
|
type = TYPE_INT;
|
401 |
|
|
break;
|
402 |
|
|
case 'o': case 'u': case 'x': case 'X':
|
403 |
|
|
#ifdef HAVE_LONG_LONG
|
404 |
|
|
if (flags >= 16 || (flags & 4))
|
405 |
|
|
type = TYPE_ULONGLONGINT;
|
406 |
|
|
else
|
407 |
|
|
#endif
|
408 |
|
|
if (flags >= 8)
|
409 |
|
|
type = TYPE_ULONGINT;
|
410 |
|
|
else if (flags & 2)
|
411 |
|
|
type = TYPE_UCHAR;
|
412 |
|
|
else if (flags & 1)
|
413 |
|
|
type = TYPE_USHORT;
|
414 |
|
|
else
|
415 |
|
|
type = TYPE_UINT;
|
416 |
|
|
break;
|
417 |
|
|
case 'f': case 'F': case 'e': case 'E': case 'g': case 'G':
|
418 |
|
|
case 'a': case 'A':
|
419 |
|
|
#ifdef HAVE_LONG_DOUBLE
|
420 |
|
|
if (flags >= 16 || (flags & 4))
|
421 |
|
|
type = TYPE_LONGDOUBLE;
|
422 |
|
|
else
|
423 |
|
|
#endif
|
424 |
|
|
type = TYPE_DOUBLE;
|
425 |
|
|
break;
|
426 |
|
|
case 'c':
|
427 |
|
|
if (flags >= 8)
|
428 |
|
|
#ifdef HAVE_WINT_T
|
429 |
|
|
type = TYPE_WIDE_CHAR;
|
430 |
|
|
#else
|
431 |
|
|
goto error;
|
432 |
|
|
#endif
|
433 |
|
|
else
|
434 |
|
|
type = TYPE_CHAR;
|
435 |
|
|
break;
|
436 |
|
|
#ifdef HAVE_WINT_T
|
437 |
|
|
case 'C':
|
438 |
|
|
type = TYPE_WIDE_CHAR;
|
439 |
|
|
c = 'c';
|
440 |
|
|
break;
|
441 |
|
|
#endif
|
442 |
|
|
case 's':
|
443 |
|
|
if (flags >= 8)
|
444 |
|
|
#ifdef HAVE_WCHAR_T
|
445 |
|
|
type = TYPE_WIDE_STRING;
|
446 |
|
|
#else
|
447 |
|
|
goto error;
|
448 |
|
|
#endif
|
449 |
|
|
else
|
450 |
|
|
type = TYPE_STRING;
|
451 |
|
|
break;
|
452 |
|
|
#ifdef HAVE_WCHAR_T
|
453 |
|
|
case 'S':
|
454 |
|
|
type = TYPE_WIDE_STRING;
|
455 |
|
|
c = 's';
|
456 |
|
|
break;
|
457 |
|
|
#endif
|
458 |
|
|
case 'p':
|
459 |
|
|
type = TYPE_POINTER;
|
460 |
|
|
break;
|
461 |
|
|
case 'n':
|
462 |
|
|
#ifdef HAVE_LONG_LONG
|
463 |
|
|
if (flags >= 16 || (flags & 4))
|
464 |
|
|
type = TYPE_COUNT_LONGLONGINT_POINTER;
|
465 |
|
|
else
|
466 |
|
|
#endif
|
467 |
|
|
if (flags >= 8)
|
468 |
|
|
type = TYPE_COUNT_LONGINT_POINTER;
|
469 |
|
|
else if (flags & 2)
|
470 |
|
|
type = TYPE_COUNT_SCHAR_POINTER;
|
471 |
|
|
else if (flags & 1)
|
472 |
|
|
type = TYPE_COUNT_SHORT_POINTER;
|
473 |
|
|
else
|
474 |
|
|
type = TYPE_COUNT_INT_POINTER;
|
475 |
|
|
break;
|
476 |
|
|
case '%':
|
477 |
|
|
type = TYPE_NONE;
|
478 |
|
|
break;
|
479 |
|
|
default:
|
480 |
|
|
/* Unknown conversion character. */
|
481 |
|
|
goto error;
|
482 |
|
|
}
|
483 |
|
|
}
|
484 |
|
|
|
485 |
|
|
if (type != TYPE_NONE)
|
486 |
|
|
{
|
487 |
|
|
dp->arg_index = arg_index;
|
488 |
|
|
if (dp->arg_index == ARG_NONE)
|
489 |
|
|
{
|
490 |
|
|
dp->arg_index = arg_posn++;
|
491 |
|
|
if (dp->arg_index == ARG_NONE)
|
492 |
|
|
/* arg_posn wrapped around. */
|
493 |
|
|
goto error;
|
494 |
|
|
}
|
495 |
|
|
REGISTER_ARG (dp->arg_index, type);
|
496 |
|
|
}
|
497 |
|
|
dp->conversion = c;
|
498 |
|
|
dp->dir_end = cp;
|
499 |
|
|
}
|
500 |
|
|
|
501 |
|
|
d->count++;
|
502 |
|
|
if (d->count >= d_allocated)
|
503 |
|
|
{
|
504 |
|
|
size_t memory_size;
|
505 |
|
|
DIRECTIVE *memory;
|
506 |
|
|
|
507 |
|
|
d_allocated = xtimes (d_allocated, 2);
|
508 |
|
|
memory_size = xtimes (d_allocated, sizeof (DIRECTIVE));
|
509 |
|
|
if (size_overflow_p (memory_size))
|
510 |
|
|
/* Overflow, would lead to out of memory. */
|
511 |
|
|
goto error;
|
512 |
|
|
memory = realloc (d->dir, memory_size);
|
513 |
|
|
if (memory == NULL)
|
514 |
|
|
/* Out of memory. */
|
515 |
|
|
goto error;
|
516 |
|
|
d->dir = memory;
|
517 |
|
|
}
|
518 |
|
|
}
|
519 |
|
|
}
|
520 |
|
|
d->dir[d->count].dir_start = cp;
|
521 |
|
|
|
522 |
|
|
d->max_width_length = max_width_length;
|
523 |
|
|
d->max_precision_length = max_precision_length;
|
524 |
|
|
return 0;
|
525 |
|
|
|
526 |
|
|
error:
|
527 |
|
|
if (a->arg)
|
528 |
|
|
free (a->arg);
|
529 |
|
|
if (d->dir)
|
530 |
|
|
free (d->dir);
|
531 |
|
|
return -1;
|
532 |
|
|
}
|
533 |
|
|
|
534 |
|
|
#undef DIRECTIVES
|
535 |
|
|
#undef DIRECTIVE
|
536 |
|
|
#undef CHAR_T
|
537 |
|
|
#undef PRINTF_PARSE
|