annotate src/tee/tee.c @ 22377:b2cb2a321af9 v8.2.1737

patch 8.2.1737: cursor line highlight in popup window is not always updated Commit: https://github.com/vim/vim/commit/10476521f51d5902d191f2189307781fc48a3a16 Author: Bram Moolenaar <Bram@vim.org> Date: Thu Sep 24 22:57:31 2020 +0200 patch 8.2.1737: cursor line highlight in popup window is not always updated Problem: Cursor line highlight in popup window is not always updated. Solution: Check if the cursor has moved. (closes https://github.com/vim/vim/issues/7010)
author Bram Moolenaar <Bram@vim.org>
date Thu, 24 Sep 2020 23:00:04 +0200
parents bc7ed647d654
children ba435f6bc1ad
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /* vim:set ts=4 sw=4:
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2 *
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3 * Copyright (c) 1996, Paul Slootman
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4 *
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5 * Author: Paul Slootman
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6 * (paul@wurtel.hobby.nl, paul@murphy.nl, paulS@toecompst.nl)
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7 * Modifications for MSVC: Yasuhiro Matsumoto
7
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8 *
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9 * This source code is released into the public domain. It is provided on an
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10 * as-is basis and no responsibility is accepted for its failure to perform
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11 * as expected. It is worth at least as much as you paid for it!
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12 *
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13 * tee.c - pipe fitting
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14 *
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15 * tee reads stdin, and writes what it reads to each of the specified
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16 * files. The primary reason of existence for this version is a quick
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17 * and dirty implementation to distribute with Vim, to make one of the
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18 * most useful features of Vim possible on OS/2: quickfix.
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19 *
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20 * Of course, not using tee but instead redirecting make's output directly
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21 * into a temp file and then processing that is possible, but if we have a
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22 * system capable of correctly piping (unlike DOS, for example), why not
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23 * use it as well as possible? This tee should also work on other systems,
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24 * but it's not been tested there, only on OS/2.
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25 *
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26 * tee is also available in the GNU shellutils package, which is available
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27 * precompiled for OS/2. That one probably works better.
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28 */
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29
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30 #ifndef _MSC_VER
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31 # include <unistd.h>
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32 #endif
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33 #include <malloc.h>
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34 #include <stdio.h>
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35 #include <stdlib.h>
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36 #include <string.h>
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37 #include <fcntl.h>
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38
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39 #ifdef _WIN32
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40 # define sysconf(x) -1
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41 #endif
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42
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43 void usage(void)
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44 {
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45 fprintf(stderr,
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46 "tee usage:\n\
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47 \ttee [-a] file ... file_n\n\
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48 \n\
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49 \t-a\tappend to files instead of truncating\n\
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50 \nTee reads its input, and writes to each of the specified files,\n\
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51 as well as to the standard output.\n\
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52 \n\
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53 This version supplied with Vim 4.2 to make ':make' possible.\n\
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54 For a more complete and stable version, consider getting\n\
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55 [a port of] the GNU shellutils package.\n\
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56 ");
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57 }
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58
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59 /*
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60 * fread only returns when count is read or at EOF.
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61 * We could use fgets, but I want to be able to handle binary blubber.
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62 */
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63
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64 int
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65 myfread(char *buf, int elsize /*ignored*/, int max, FILE *fp)
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66 {
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67 int c;
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68 int n = 0;
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69
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70 while ((n < max) && ((c = getchar()) != EOF))
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71 {
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72 *(buf++) = c;
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73 n++;
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74 if (c == '\n' || c == '\r')
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75 break;
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76 }
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77 return n;
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78 }
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79
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80
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81 void
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82 main(int argc, char *argv[])
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83 {
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84 int append = 0;
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85 int numfiles;
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86 int opt;
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87 int maxfiles;
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88 FILE **filepointers;
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89 int i;
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90 char buf[BUFSIZ];
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91 int n;
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92 int optind = 1;
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93
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94 for (i = 1; i < argc; i++)
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95 {
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96 if (argv[i][0] != '-')
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97 break;
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98 if (!strcmp(argv[i], "-a"))
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99 append++;
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100 else
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101 usage();
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102 optind++;
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103 }
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104
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105 numfiles = argc - optind;
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106
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107 if (numfiles == 0)
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108 {
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109 fprintf(stderr, "doesn't make much sense using tee without any file name arguments...\n");
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110 usage();
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111 exit(2);
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112 }
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113
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114 maxfiles = sysconf(_SC_OPEN_MAX); /* or fill in 10 or so */
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115 if (maxfiles < 0)
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116 maxfiles = 10;
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117 if (numfiles + 3 > maxfiles) /* +3 accounts for stdin, out, err */
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118 {
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119 fprintf(stderr, "Sorry, there is a limit of max %d files.\n", maxfiles - 3);
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120 exit(1);
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121 }
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122 filepointers = calloc(numfiles, sizeof(FILE *));
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123 if (filepointers == NULL)
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124 {
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125 fprintf(stderr, "Error allocating memory for %d files\n", numfiles);
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126 exit(1);
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127 }
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128 for (i = 0; i < numfiles; i++)
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129 {
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130 filepointers[i] = fopen(argv[i+optind], append ? "ab" : "wb");
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131 if (filepointers[i] == NULL)
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132 {
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133 fprintf(stderr, "Can't open \"%s\"\n", argv[i+optind]);
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134 exit(1);
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135 }
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136 }
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137 #ifdef _WIN32
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138 setmode(fileno(stdin), O_BINARY);
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139 fflush(stdout); /* needed for _fsetmode(stdout) */
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140 setmode(fileno(stdout), O_BINARY);
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141 #endif
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142
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143 while ((n = myfread(buf, sizeof(char), sizeof(buf), stdin)) > 0)
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144 {
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145 fwrite(buf, sizeof(char), n, stdout);
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146 fflush(stdout);
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147 for (i = 0; i < numfiles; i++)
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148 {
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149 if (filepointers[i] &&
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150 fwrite(buf, sizeof(char), n, filepointers[i]) != n)
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151 {
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152 fprintf(stderr, "Error writing to file \"%s\"\n", argv[i+optind]);
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153 fclose(filepointers[i]);
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154 filepointers[i] = NULL;
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155 }
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156 }
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157 }
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158 for (i = 0; i < numfiles; i++)
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159 {
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160 if (filepointers[i])
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161 fclose(filepointers[i]);
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162 }
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163
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164 exit(0);
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165 }