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0
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1 /* Output like sprintf to a buffer of specified size.
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2 Also takes args differently: pass one pointer to an array of strings
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3 in addition to the format string which is separate.
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4 Copyright (C) 1995 Free Software Foundation, Inc.
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5 Rewritten by mly to use varargs.h.
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6 Rewritten from scratch by Ben Wing (February 1995) for Mule; expanded
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7 to full printf spec.
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8
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9 This file is part of XEmacs.
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10
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11 XEmacs is free software; you can redistribute it and/or modify it
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12 under the terms of the GNU General Public License as published by the
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13 Free Software Foundation; either version 2, or (at your option) any
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14 later version.
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15
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16 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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17 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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18 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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19 for more details.
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20
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21 You should have received a copy of the GNU General Public License
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22 along with XEmacs; see the file COPYING. If not, write to
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23 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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24 Boston, MA 02111-1307, USA. */
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25
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26 /* Synched up with: Rewritten. Not in FSF. */
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27
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28 #include <config.h>
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29 #include "lisp.h"
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30
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31 #include "buffer.h"
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32 #include "lstream.h"
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33
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34 static CONST char *valid_flags = "-+ #0";
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35
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36 static CONST char *valid_converters = "diouxXfeEgGcsS";
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37 static CONST char *int_converters = "dic";
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38 static CONST char *unsigned_int_converters = "ouxX";
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39 static CONST char *double_converters = "feEgG";
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40 static CONST char *string_converters = "sS";
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41
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42 struct printf_spec
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43 {
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44 int argnum; /* which argument does this spec want? This is one-based:
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45 The first argument given is numbered 1, the second
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46 is 2, etc. This is to handle %##$x-type specs. */
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47 int minwidth;
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48 int precision;
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74
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49 unsigned int minus_flag:1;
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50 unsigned int plus_flag:1;
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51 unsigned int space_flag:1;
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52 unsigned int number_flag:1;
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53 unsigned int zero_flag:1;
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54 unsigned int h_flag:1;
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55 unsigned int l_flag:1;
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0
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56 char converter; /* converter character or 0 for dummy marker
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57 indicating literal text at the end of the
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58 specification */
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59 Bytecount text_before; /* position of the first character of the
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60 block of literal text before this spec */
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61 Bytecount text_before_len; /* length of that text */
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62 };
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63
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64 union printf_arg
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65 {
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66 int i;
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67 unsigned int ui;
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68 long l;
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69 unsigned long ul;
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70 double d;
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71 Bufbyte *bp;
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72 };
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73
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74 /* We maintain a list of all the % specs in the specification,
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75 along with the offset and length of the block of literal text
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76 before each spec. In addition, we have a "dummy" spec that
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77 represents all the literal text at the end of the specification.
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78 Its converter is 0. */
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79
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80 typedef struct
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81 {
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82 Dynarr_declare (struct printf_spec);
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83 } printf_spec_dynarr;
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84
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85 typedef struct
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86 {
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87 Dynarr_declare (union printf_arg);
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88 } printf_arg_dynarr;
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89
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90 /* Append STRING (of length LEN) to STREAM. MINLEN is the minimum field
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91 width. If MINUS_FLAG is set, left-justify the string in its field;
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92 otherwise, right-justify. If ZERO_FLAG is set, pad with 0's; otherwise
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93 pad with spaces. If MAXLEN is non-negative, the string is first
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94 truncated to that many character.
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95
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96 Note that MINLEN and MAXLEN are Charcounts but LEN is a Bytecount. */
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97
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98 static void
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99 doprnt_1 (Lisp_Object stream, CONST Bufbyte *string, Bytecount len,
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100 Charcount minlen, Charcount maxlen, int minus_flag, int zero_flag)
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101 {
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102 Charcount cclen;
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103 Bufbyte pad;
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104 Lstream *lstr = XLSTREAM (stream);
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105
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106 cclen = bytecount_to_charcount (string, len);
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107
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108 if (zero_flag)
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109 pad = '0';
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110 else
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111 pad = ' ';
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112
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113 /* Padding at beginning to right-justify ... */
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114 if (minlen > cclen && !minus_flag)
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115 {
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116 int to_add = minlen - cclen;
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117 while (to_add > 0)
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118 {
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119 Lstream_putc (lstr, pad);
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120 to_add--;
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121 }
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122 }
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123
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124 if (maxlen >= 0)
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125 len = charcount_to_bytecount (string, min (maxlen, cclen));
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126 Lstream_write (lstr, string, len);
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127
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128 /* Padding at end to left-justify ... */
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129 if (minlen > cclen && minus_flag)
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130 {
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131 int to_add = minlen - cclen;
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132 while (to_add > 0)
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133 {
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134 Lstream_putc (lstr, pad);
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135 to_add--;
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136 }
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137 }
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138 }
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139
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140 static CONST Bufbyte *
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141 parse_off_posnum (CONST Bufbyte *start, CONST Bufbyte *end, int *returned_num)
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142 {
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143 Bufbyte arg_convert[100];
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144 REGISTER Bufbyte *arg_ptr = arg_convert;
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145
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146 *returned_num = -1;
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147 while (start != end && isdigit (*start))
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148 {
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149 if (arg_ptr - arg_convert >= sizeof (arg_convert) - 1)
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150 error ("Format converter number too large");
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151 *arg_ptr++ = *start++;
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152 }
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153 *arg_ptr = '\0';
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154 if (arg_convert != arg_ptr)
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155 *returned_num = atoi ((char *) arg_convert);
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156 return start;
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157 }
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158
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159 #define NEXT_ASCII_BYTE(ch) \
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160 do { \
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161 if (fmt == fmt_end) \
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162 error ("Premature end of format string"); \
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163 ch = *fmt; \
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164 if (ch >= 0200) \
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165 error ("Non-ASCII character in format converter spec"); \
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166 fmt++; \
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167 } while (0)
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168
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169 static printf_spec_dynarr *
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170 parse_doprnt_spec (CONST Bufbyte *format, Bytecount format_length)
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171 {
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172 CONST Bufbyte *fmt = format;
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173 CONST Bufbyte *fmt_end = format + format_length;
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174 printf_spec_dynarr *specs = Dynarr_new (struct printf_spec);
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175 int prev_argnum = 0;
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176
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177 while (1)
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178 {
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179 struct printf_spec spec;
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180 CONST Bufbyte *text_end;
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181 Bufbyte ch;
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182
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183 memset (&spec, 0, sizeof (spec));
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184 if (fmt == fmt_end)
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185 return specs;
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186 text_end = (Bufbyte *) memchr (fmt, '%', fmt_end - fmt);
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187 if (!text_end)
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188 text_end = fmt_end;
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189 spec.text_before = fmt - format;
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190 spec.text_before_len = text_end - fmt;
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191 fmt = text_end;
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192 if (fmt != fmt_end)
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193 {
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194 fmt++; /* skip over % */
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195
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196 /* A % is special -- no arg number. According to ANSI specs,
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197 field width does not apply to %% conversion. */
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198 if (fmt != fmt_end && *fmt == '%')
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199 {
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200 spec.converter = '%';
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201 Dynarr_add (specs, spec);
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202 fmt++;
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203 continue;
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204 }
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205
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206 /* Is there a field number specifier? */
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207 {
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208 CONST Bufbyte *ptr;
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209 int fieldspec;
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210
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211 ptr = parse_off_posnum (fmt, fmt_end, &fieldspec);
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212 if (fieldspec > 0 && ptr != fmt_end && *ptr == '$')
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213 {
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214 /* There is a format specifier */
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215 prev_argnum = fieldspec;
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216 fmt = ptr + 1;
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217 }
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218 else
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219 prev_argnum++;
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220 spec.argnum = prev_argnum;
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221 }
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222
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223 /* Parse off any flags */
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224 NEXT_ASCII_BYTE (ch);
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225 while (strchr (valid_flags, ch))
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226 {
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227 switch (ch)
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228 {
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229 case '-': spec.minus_flag = 1; break;
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230 case '+': spec.plus_flag = 1; break;
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231 case ' ': spec.space_flag = 1; break;
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232 case '#': spec.number_flag = 1; break;
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233 case '0': spec.zero_flag = 1; break;
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234 default: abort ();
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235 }
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236 NEXT_ASCII_BYTE (ch);
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237 }
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238
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239 /* Parse off the minimum field width */
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240 fmt--; /* back up */
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241 fmt = parse_off_posnum (fmt, fmt_end, &spec.minwidth);
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242 if (spec.minwidth == -1)
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243 spec.minwidth = 0;
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244
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245 /* Parse off any precision specified */
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246 NEXT_ASCII_BYTE (ch);
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247 if (ch == '.')
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248 {
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249 fmt = parse_off_posnum (fmt, fmt_end, &spec.precision);
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250 if (spec.precision == -1)
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251 spec.precision = 0;
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252 NEXT_ASCII_BYTE (ch);
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253 }
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254 else
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255 /* No precision specified */
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256 spec.precision = -1;
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257
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258 /* Parse off h or l flag */
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259 if (ch == 'h' || ch == 'l')
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260 {
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261 if (ch == 'h')
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262 spec.h_flag = 1;
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263 else
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264 spec.l_flag = 1;
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265 NEXT_ASCII_BYTE (ch);
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266 }
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267
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268 if (!strchr (valid_converters, ch))
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269 error ("Invalid converter character %c", ch);
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270 spec.converter = ch;
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271 }
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272
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273 if (spec.space_flag && spec.plus_flag)
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274 spec.space_flag = 0;
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275 if (spec.zero_flag && spec.space_flag)
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276 spec.zero_flag = 0;
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277
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278 Dynarr_add (specs, spec);
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279 }
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280
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281 RETURN_NOT_REACHED(specs) /* suppress compiler warning */
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282 }
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283
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284 static int
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285 get_args_needed (printf_spec_dynarr *specs)
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286 {
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287 int args_needed = 0;
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288 REGISTER int i;
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289
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290 /* Figure out how many args are needed. This may be less than
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291 the number of specs because a spec could be %% or could be
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292 missing (literal text at end of format string) or there
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293 could be specs where the field number is explicitly given.
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294 We just look for the maximum argument number that's referenced. */
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295
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296 for (i = 0; i < Dynarr_length (specs); i++)
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297 {
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298 char ch = Dynarr_at (specs, i).converter;
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299 if (ch && ch != '%')
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300 {
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301 int argnum = Dynarr_at (specs, i).argnum;
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302 if (argnum > args_needed)
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303 args_needed = argnum;
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304 }
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305 }
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306
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307 return args_needed;
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308 }
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309
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310 static printf_arg_dynarr *
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311 get_doprnt_args (printf_spec_dynarr *specs, va_list vargs)
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312 {
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313 printf_arg_dynarr *args = Dynarr_new (union printf_arg);
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314 union printf_arg arg;
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315 REGISTER int i;
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316 int args_needed = get_args_needed (specs);
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317
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318 memset (&arg, 0, sizeof (union printf_arg));
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319 for (i = 1; i <= args_needed; i++)
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320 {
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321 int j;
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322 char ch;
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323 struct printf_spec *spec = 0;
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324
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325 for (j = 0; j < Dynarr_length (specs); j++)
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326 {
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327 spec = Dynarr_atp (specs, j);
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328 if (spec->argnum == i)
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329 break;
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330 }
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331
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332 if (j == Dynarr_length (specs))
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333 error ("No conversion spec for argument %d", i);
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334
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335 ch = spec->converter;
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336
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337 /* int even if ch == 'c': "the type used in va_arg is supposed to
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338 match the actual type **after default promotions**." */
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339
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340 if (strchr (int_converters, ch))
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341 {
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342 if (spec->h_flag)
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343 arg.i = va_arg (vargs, short);
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344 else if (spec->l_flag)
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345 arg.l = va_arg (vargs, long);
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346 else
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347 arg.i = va_arg (vargs, int);
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348 }
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349 else if (strchr (unsigned_int_converters, ch))
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350 {
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351 if (spec->h_flag)
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352 arg.ui = va_arg (vargs, unsigned short);
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353 else if (spec->l_flag)
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354 arg.ul = va_arg (vargs, unsigned long);
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355 else
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356 arg.ui = va_arg (vargs, unsigned int);
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357 }
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358 else if (strchr (double_converters, ch))
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359 arg.d = va_arg (vargs, double);
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360 else if (strchr (string_converters, ch))
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361 arg.bp = va_arg (vargs, Bufbyte *);
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362 else abort ();
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363
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364 Dynarr_add (args, arg);
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365 }
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366
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367 return args;
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368 }
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369
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370 /* Generate output from a format-spec FORMAT, of length FORMAT_LENGTH.
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371 Output goes in BUFFER, which has room for BUFSIZE bytes.
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372 If the output does not fit, truncate it to fit.
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373 Returns the number of bytes stored into BUFFER.
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374 LARGS or VARGS points to the arguments, and NARGS says how many.
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375 if LARGS is non-zero, it should be a pointer to NARGS worth of
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376 Lisp arguments. Otherwise, VARGS should be a va_list referring
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377 to the arguments. */
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378
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379 static Bytecount
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380 emacs_doprnt_1 (Lisp_Object stream, CONST Bufbyte *format_nonreloc,
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381 Lisp_Object format_reloc, Bytecount format_length,
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382 int nargs,
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383 /* #### Gag me, gag me, gag me */
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384 CONST Lisp_Object *largs, va_list vargs)
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385 {
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386 printf_spec_dynarr *specs = 0;
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387 printf_arg_dynarr *args = 0;
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388 REGISTER int i;
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389 int init_byte_count = Lstream_byte_count (XLSTREAM (stream));
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390
|
|
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391 if (!NILP (format_reloc))
|
|
|
392 {
|
|
14
|
393 format_nonreloc = XSTRING_DATA (format_reloc);
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|
|
394 format_length = XSTRING_LENGTH (format_reloc);
|
|
0
|
395 }
|
|
|
396 if (format_length < 0)
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|
397 format_length = (Bytecount) strlen ((CONST char *) format_nonreloc);
|
|
|
398
|
|
|
399 specs = parse_doprnt_spec (format_nonreloc, format_length);
|
|
|
400 if (largs)
|
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|
401 {
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|
|
402 /* allow too many args for string, but not too few */
|
|
|
403 if (nargs < get_args_needed (specs))
|
|
|
404 signal_error (Qwrong_number_of_arguments,
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|
|
405 list3 (Qformat,
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|
|
406 make_int (nargs),
|
|
|
407 !NILP (format_reloc) ? format_reloc :
|
|
|
408 make_string (format_nonreloc, format_length)));
|
|
|
409 }
|
|
|
410 else
|
|
|
411 {
|
|
|
412 args = get_doprnt_args (specs, vargs);
|
|
|
413 }
|
|
|
414
|
|
|
415 for (i = 0; i < Dynarr_length (specs); i++)
|
|
|
416 {
|
|
|
417 struct printf_spec *spec = Dynarr_atp (specs, i);
|
|
|
418 char ch;
|
|
|
419
|
|
|
420 /* Copy the text before */
|
|
|
421 if (!NILP (format_reloc)) /* refetch in case of GC below */
|
|
14
|
422 format_nonreloc = XSTRING_DATA (format_reloc);
|
|
0
|
423 doprnt_1 (stream, format_nonreloc + spec->text_before,
|
|
|
424 spec->text_before_len, 0, -1, 0, 0);
|
|
|
425
|
|
|
426 ch = spec->converter;
|
|
|
427
|
|
|
428 if (!ch)
|
|
|
429 continue;
|
|
|
430
|
|
|
431 if (ch == '%')
|
|
|
432 {
|
|
|
433 doprnt_1 (stream, (Bufbyte *) &ch, 1, 0, -1, 0, 0);
|
|
|
434 continue;
|
|
|
435 }
|
|
|
436
|
|
|
437 if (largs && (spec->argnum < 1 || spec->argnum > nargs))
|
|
|
438 error ("Invalid repositioning argument %d", spec->argnum);
|
|
|
439
|
|
|
440 else if (ch == 'S' || ch == 's')
|
|
|
441 {
|
|
|
442 Bufbyte *string;
|
|
|
443 Bytecount string_len;
|
|
|
444
|
|
|
445 if (!largs)
|
|
|
446 {
|
|
|
447 string = Dynarr_at (args, spec->argnum - 1).bp;
|
|
|
448 string_len = strlen ((char *) string);
|
|
|
449 }
|
|
|
450 else
|
|
|
451 {
|
|
|
452 Lisp_Object obj = largs[spec->argnum - 1];
|
|
|
453 struct Lisp_String *ls;
|
|
|
454
|
|
|
455 if (ch == 'S')
|
|
|
456 {
|
|
|
457 /* For `S', prin1 the argument and then treat like
|
|
|
458 a string. */
|
|
|
459 ls = XSTRING (Fprin1_to_string (obj, Qnil));
|
|
|
460 }
|
|
|
461 else if (STRINGP (obj))
|
|
|
462 ls = XSTRING (obj);
|
|
|
463 else if (SYMBOLP (obj))
|
|
|
464 ls = XSYMBOL (obj)->name;
|
|
|
465 else
|
|
|
466 {
|
|
|
467 /* convert to string using princ. */
|
|
|
468 ls = XSTRING (Fprin1_to_string (obj, Qt));
|
|
|
469 }
|
|
|
470 string = string_data (ls);
|
|
|
471 string_len = string_length (ls);
|
|
|
472 }
|
|
|
473
|
|
|
474 doprnt_1 (stream, string, string_len, spec->minwidth,
|
|
|
475 spec->precision, spec->minus_flag, spec->zero_flag);
|
|
|
476 }
|
|
|
477
|
|
|
478 else
|
|
|
479 {
|
|
|
480 /* Must be a number. */
|
|
|
481 union printf_arg arg;
|
|
|
482
|
|
|
483 if (!largs)
|
|
|
484 {
|
|
|
485 arg = Dynarr_at (args, spec->argnum - 1);
|
|
|
486 }
|
|
|
487 else
|
|
|
488 {
|
|
|
489 Lisp_Object obj = largs[spec->argnum - 1];
|
|
70
|
490 if (CHARP (obj))
|
|
|
491 CHECK_INT_COERCE_CHAR (obj);
|
|
0
|
492 if (!INT_OR_FLOATP (obj))
|
|
|
493 {
|
|
|
494 error ("format specifier %%%c doesn't match argument type",
|
|
|
495 ch);
|
|
|
496 }
|
|
|
497 else if (strchr (double_converters, ch))
|
|
|
498 arg.d = XFLOATINT (obj);
|
|
|
499 else
|
|
|
500 {
|
|
|
501 int val;
|
|
|
502
|
|
|
503 if (FLOATP (obj))
|
|
|
504 val = XINT (Ftruncate (obj));
|
|
|
505 else
|
|
|
506 val = XINT (obj);
|
|
|
507 if (strchr (unsigned_int_converters, ch))
|
|
|
508 {
|
|
|
509 if (spec->l_flag)
|
|
|
510 arg.ul = (unsigned long) val;
|
|
|
511 else
|
|
|
512 arg.ui = (unsigned int) val;
|
|
|
513 }
|
|
|
514 else
|
|
|
515 {
|
|
|
516 if (spec->l_flag)
|
|
|
517 arg.l = (long) val;
|
|
|
518 else
|
|
|
519 arg.i = val;
|
|
|
520 }
|
|
|
521 }
|
|
|
522 }
|
|
|
523
|
|
|
524
|
|
|
525 if (ch == 'c')
|
|
|
526 {
|
|
|
527 Emchar a;
|
|
|
528 Bytecount charlen;
|
|
|
529 Bufbyte charbuf[MAX_EMCHAR_LEN];
|
|
|
530
|
|
|
531 if (spec->l_flag)
|
|
|
532 a = (Emchar) arg.l;
|
|
|
533 else
|
|
|
534 a = (Emchar) arg.i;
|
|
|
535
|
|
|
536 if (!valid_char_p (a))
|
|
|
537 error ("invalid character value %d to %%c spec", a);
|
|
|
538
|
|
|
539 charlen = set_charptr_emchar (charbuf, a);
|
|
|
540 doprnt_1 (stream, charbuf, charlen, spec->minwidth,
|
|
|
541 -1, spec->minus_flag, spec->zero_flag);
|
|
|
542 }
|
|
|
543
|
|
|
544 else
|
|
|
545 {
|
|
|
546 char text_to_print[500];
|
|
|
547 char constructed_spec[100];
|
|
|
548
|
|
|
549 /* Partially reconstruct the spec and use sprintf() to
|
|
|
550 format the string. */
|
|
|
551
|
|
|
552 /* Make sure nothing stupid happens */
|
|
|
553 /* DO NOT REMOVE THE (int) CAST! Incorrect results will
|
|
|
554 follow! */
|
|
|
555 spec->precision = min (spec->precision,
|
|
|
556 (int) (sizeof (text_to_print) - 50));
|
|
|
557
|
|
|
558 constructed_spec[0] = 0;
|
|
|
559 strcat (constructed_spec, "%");
|
|
|
560 if (spec->plus_flag)
|
|
|
561 strcat (constructed_spec, "+");
|
|
|
562 if (spec->space_flag)
|
|
|
563 strcat (constructed_spec, " ");
|
|
|
564 if (spec->number_flag)
|
|
|
565 strcat (constructed_spec, "#");
|
|
|
566 if (spec->precision >= 0)
|
|
|
567 {
|
|
|
568 strcat (constructed_spec, ".");
|
|
|
569 sprintf (constructed_spec + strlen (constructed_spec), "%d",
|
|
|
570 spec->precision);
|
|
|
571 }
|
|
|
572 sprintf (constructed_spec + strlen (constructed_spec), "%c", ch);
|
|
|
573
|
|
|
574 /* sprintf the mofo */
|
|
|
575 /* we have to use separate calls to sprintf(), rather than
|
|
|
576 a single big conditional, because of the different types
|
|
|
577 of the arguments */
|
|
|
578 if (strchr (double_converters, ch))
|
|
|
579 sprintf (text_to_print, constructed_spec, arg.d);
|
|
|
580 else if (strchr (unsigned_int_converters, ch))
|
|
|
581 {
|
|
|
582 if (spec->l_flag)
|
|
|
583 sprintf (text_to_print, constructed_spec, arg.ul);
|
|
|
584 else
|
|
|
585 sprintf (text_to_print, constructed_spec, arg.ui);
|
|
|
586 }
|
|
|
587 else
|
|
|
588 {
|
|
|
589 if (spec->l_flag)
|
|
|
590 sprintf (text_to_print, constructed_spec, arg.l);
|
|
|
591 else
|
|
|
592 sprintf (text_to_print, constructed_spec, arg.i);
|
|
|
593 }
|
|
|
594
|
|
|
595 doprnt_1 (stream, (Bufbyte *) text_to_print,
|
|
|
596 strlen (text_to_print),
|
|
|
597 spec->minwidth, -1, spec->minus_flag, spec->zero_flag);
|
|
|
598 }
|
|
|
599 }
|
|
|
600 }
|
|
|
601
|
|
|
602 /* #### will not get freed if error */
|
|
|
603 if (specs)
|
|
|
604 Dynarr_free (specs);
|
|
|
605 if (args)
|
|
|
606 Dynarr_free (args);
|
|
|
607 return Lstream_byte_count (XLSTREAM (stream)) - init_byte_count;
|
|
|
608 }
|
|
|
609
|
|
|
610 /* You really don't want to know why this is necessary... */
|
|
|
611 static Bytecount
|
|
|
612 emacs_doprnt_2 (Lisp_Object stream, CONST Bufbyte *format_nonreloc,
|
|
|
613 Lisp_Object format_reloc, Bytecount format_length, int nargs,
|
|
|
614 CONST Lisp_Object *largs, ...)
|
|
|
615 {
|
|
|
616 va_list vargs;
|
|
|
617 Bytecount val;
|
|
|
618 va_start (vargs, largs);
|
|
|
619 val = emacs_doprnt_1 (stream, format_nonreloc, format_reloc,
|
|
|
620 format_length, nargs, largs, vargs);
|
|
|
621 va_end (vargs);
|
|
|
622 return val;
|
|
|
623 }
|
|
|
624
|
|
|
625 /*********************** external entry points ***********************/
|
|
|
626
|
|
|
627 #ifdef I18N3
|
|
|
628 /* A note about I18N3 translating: the format string should get
|
|
|
629 translated, but not under all circumstances. When the format
|
|
|
630 string is a Lisp string, what should happen is that Fformat()
|
|
|
631 should format the untranslated args[0] and return that, and also
|
|
|
632 call Fgettext() on args[0] and, if that is different, format it
|
|
|
633 and store it in the `string-translatable' property of
|
|
|
634 the returned string. See Fgettext(). */
|
|
|
635 #endif
|
|
|
636
|
|
|
637 /* Send formatted output to STREAM. The format string comes from
|
|
|
638 either FORMAT_NONRELOC (of length FORMAT_LENGTH; -1 means use
|
|
|
639 strlen() to determine the length) or from FORMAT_RELOC, which
|
|
|
640 should be a Lisp string. Return the number of bytes written
|
|
|
641 to the stream.
|
|
|
642
|
|
|
643 DO NOT pass the data from a Lisp string as the FORMAT_NONRELOC
|
|
|
644 parameter, because this function can cause GC. */
|
|
|
645
|
|
|
646 Bytecount
|
|
|
647 emacs_doprnt_c (Lisp_Object stream, CONST Bufbyte *format_nonreloc,
|
|
|
648 Lisp_Object format_reloc, Bytecount format_length,
|
|
|
649 ...)
|
|
|
650 {
|
|
|
651 int val;
|
|
|
652 va_list vargs;
|
|
|
653
|
|
|
654 va_start (vargs, format_length);
|
|
|
655 val = emacs_doprnt_1 (stream, format_nonreloc, format_reloc,
|
|
|
656 format_length, 0, 0, vargs);
|
|
|
657 va_end (vargs);
|
|
|
658 return val;
|
|
|
659 }
|
|
|
660
|
|
|
661 /* Like emacs_doprnt_c but the args come in va_list format. */
|
|
|
662
|
|
|
663 Bytecount
|
|
|
664 emacs_doprnt_va (Lisp_Object stream, CONST Bufbyte *format_nonreloc,
|
|
|
665 Lisp_Object format_reloc, Bytecount format_length,
|
|
|
666 va_list vargs)
|
|
|
667 {
|
|
|
668 return emacs_doprnt_1 (stream, format_nonreloc, format_reloc,
|
|
|
669 format_length, 0, 0, vargs);
|
|
|
670 }
|
|
|
671
|
|
|
672 /* Like emacs_doprnt_c but the args are Lisp objects instead of
|
|
|
673 C arguments. This causes somewhat different behavior from
|
|
|
674 the above two functions (which should act like printf).
|
|
|
675 See `format' for a description of this behavior. */
|
|
|
676
|
|
|
677 Bytecount
|
|
|
678 emacs_doprnt_lisp (Lisp_Object stream, CONST Bufbyte *format_nonreloc,
|
|
|
679 Lisp_Object format_reloc, Bytecount format_length,
|
|
|
680 int nargs, CONST Lisp_Object *largs)
|
|
|
681 {
|
|
|
682 return emacs_doprnt_2 (stream, format_nonreloc, format_reloc,
|
|
|
683 format_length, nargs, largs);
|
|
|
684 }
|
|
|
685
|
|
|
686 /* Like the previous function but takes a variable number of arguments. */
|
|
|
687
|
|
|
688 Bytecount
|
|
|
689 emacs_doprnt_lisp_2 (Lisp_Object stream, CONST Bufbyte *format_nonreloc,
|
|
|
690 Lisp_Object format_reloc, Bytecount format_length,
|
|
|
691 int nargs, ...)
|
|
|
692 {
|
|
|
693 Lisp_Object *foo;
|
|
|
694 va_list vargs;
|
|
|
695 int i;
|
|
|
696
|
|
|
697 foo = (Lisp_Object *) alloca (nargs * sizeof (Lisp_Object));
|
|
|
698 va_start (vargs, nargs);
|
|
|
699 for (i = 0; i < nargs; i++)
|
|
|
700 foo[i] = va_arg (vargs, Lisp_Object);
|
|
|
701 va_end (vargs);
|
|
|
702
|
|
|
703 return emacs_doprnt_2 (stream, format_nonreloc, format_reloc,
|
|
|
704 format_length, nargs, foo);
|
|
|
705 }
|
|
|
706
|
|
|
707 /* The following four functions work like the above three but
|
|
|
708 return their output as a Lisp string instead of sending it
|
|
|
709 to a stream. */
|
|
|
710
|
|
|
711 Lisp_Object
|
|
|
712 emacs_doprnt_string_c (CONST Bufbyte *format_nonreloc,
|
|
|
713 Lisp_Object format_reloc, Bytecount format_length,
|
|
|
714 ...)
|
|
|
715 {
|
|
|
716 va_list vargs;
|
|
|
717 Lisp_Object obj;
|
|
|
718 Lisp_Object stream = make_resizing_buffer_output_stream ();
|
|
|
719 struct gcpro gcpro1;
|
|
|
720
|
|
|
721 GCPRO1 (stream);
|
|
|
722 va_start (vargs, format_length);
|
|
|
723 emacs_doprnt_1 (stream, format_nonreloc, format_reloc,
|
|
|
724 format_length, 0, 0, vargs);
|
|
|
725 va_end (vargs);
|
|
|
726 Lstream_flush (XLSTREAM (stream));
|
|
|
727 obj = make_string (resizing_buffer_stream_ptr (XLSTREAM (stream)),
|
|
|
728 Lstream_byte_count (XLSTREAM (stream)));
|
|
|
729 UNGCPRO;
|
|
|
730 Lstream_delete (XLSTREAM (stream));
|
|
|
731 return obj;
|
|
|
732 }
|
|
|
733
|
|
|
734 Lisp_Object
|
|
|
735 emacs_doprnt_string_va (CONST Bufbyte *format_nonreloc,
|
|
|
736 Lisp_Object format_reloc, Bytecount format_length,
|
|
|
737 va_list vargs)
|
|
|
738 {
|
|
|
739 /* I'm fairly sure that this function cannot actually GC.
|
|
|
740 That can only happen when the arguments to emacs_doprnt_1() are
|
|
|
741 Lisp objects rather than C args. */
|
|
|
742 Lisp_Object obj;
|
|
|
743 Lisp_Object stream = make_resizing_buffer_output_stream ();
|
|
|
744 struct gcpro gcpro1;
|
|
|
745
|
|
|
746 GCPRO1 (stream);
|
|
|
747 emacs_doprnt_1 (stream, format_nonreloc, format_reloc,
|
|
|
748 format_length, 0, 0, vargs);
|
|
|
749 Lstream_flush (XLSTREAM (stream));
|
|
|
750 obj = make_string (resizing_buffer_stream_ptr (XLSTREAM (stream)),
|
|
|
751 Lstream_byte_count (XLSTREAM (stream)));
|
|
|
752 UNGCPRO;
|
|
|
753 Lstream_delete (XLSTREAM (stream));
|
|
|
754 return obj;
|
|
|
755 }
|
|
|
756
|
|
|
757 Lisp_Object
|
|
|
758 emacs_doprnt_string_lisp (CONST Bufbyte *format_nonreloc,
|
|
|
759 Lisp_Object format_reloc, Bytecount format_length,
|
|
|
760 int nargs, CONST Lisp_Object *largs)
|
|
|
761 {
|
|
|
762 Lisp_Object obj;
|
|
|
763 Lisp_Object stream = make_resizing_buffer_output_stream ();
|
|
|
764 struct gcpro gcpro1;
|
|
|
765
|
|
|
766 GCPRO1 (stream);
|
|
|
767 emacs_doprnt_2 (stream, format_nonreloc, format_reloc,
|
|
|
768 format_length, nargs, largs);
|
|
|
769 Lstream_flush (XLSTREAM (stream));
|
|
|
770 obj = make_string (resizing_buffer_stream_ptr (XLSTREAM (stream)),
|
|
|
771 Lstream_byte_count (XLSTREAM (stream)));
|
|
|
772 UNGCPRO;
|
|
|
773 Lstream_delete (XLSTREAM (stream));
|
|
|
774 return obj;
|
|
|
775 }
|
|
|
776
|
|
|
777 Lisp_Object
|
|
|
778 emacs_doprnt_string_lisp_2 (CONST Bufbyte *format_nonreloc,
|
|
|
779 Lisp_Object format_reloc, Bytecount format_length,
|
|
|
780 int nargs, ...)
|
|
|
781 {
|
|
|
782 Lisp_Object obj;
|
|
|
783 Lisp_Object stream = make_resizing_buffer_output_stream ();
|
|
|
784 struct gcpro gcpro1;
|
|
|
785 Lisp_Object *foo;
|
|
|
786 va_list vargs;
|
|
|
787 int i;
|
|
|
788
|
|
|
789 foo = (Lisp_Object *) alloca (nargs * sizeof (Lisp_Object));
|
|
|
790 va_start (vargs, nargs);
|
|
|
791 for (i = 0; i < nargs; i++)
|
|
|
792 foo[i] = va_arg (vargs, Lisp_Object);
|
|
|
793 va_end (vargs);
|
|
|
794
|
|
|
795 GCPRO1 (stream);
|
|
|
796 emacs_doprnt_2 (stream, format_nonreloc, format_reloc,
|
|
|
797 format_length, nargs, foo);
|
|
|
798 Lstream_flush (XLSTREAM (stream));
|
|
|
799 obj = make_string (resizing_buffer_stream_ptr (XLSTREAM (stream)),
|
|
|
800 Lstream_byte_count (XLSTREAM (stream)));
|
|
|
801 UNGCPRO;
|
|
|
802 Lstream_delete (XLSTREAM (stream));
|
|
|
803 return obj;
|
|
|
804 }
|
