1# $Id: MKkeyname.awk,v 1.51 2020/02/02 23:34:34 tom Exp $ 2############################################################################## 3# Copyright 2020 Thomas E. Dickey # 4# Copyright 1998-2016,2017 Free Software Foundation, Inc. # 5# # 6# Permission is hereby granted, free of charge, to any person obtaining a # 7# copy of this software and associated documentation files (the "Software"), # 8# to deal in the Software without restriction, including without limitation # 9# the rights to use, copy, modify, merge, publish, distribute, distribute # 10# with modifications, sublicense, and/or sell copies of the Software, and to # 11# permit persons to whom the Software is furnished to do so, subject to the # 12# following conditions: # 13# # 14# The above copyright notice and this permission notice shall be included in # 15# all copies or substantial portions of the Software. # 16# # 17# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR # 18# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, # 19# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL # 20# THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER # 21# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING # 22# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER # 23# DEALINGS IN THE SOFTWARE. # 24# # 25# Except as contained in this notice, the name(s) of the above copyright # 26# holders shall not be used in advertising or otherwise to promote the sale, # 27# use or other dealings in this Software without prior written # 28# authorization. # 29############################################################################## 30BEGIN { 31 print "/* generated by MKkeyname.awk */" 32 print "" 33 print "#include <curses.priv.h>" 34 print "#include <tic.h>" 35 print "" 36 first = 1; 37} 38 39/^[^#]/ { 40 if (bigstrings) { 41 if (first) { 42 print "struct kn { short offset; int code; };" 43 print "static const struct kn _nc_key_names[] = {" 44 } 45 printf "\t{ %d, %s },\n", offset, $1 46 offset += length($1) + 1 47 names = names"\n\t\""$1"\\0\"" 48 } else { 49 if (first) { 50 print "struct kn { const char *name; int code; };" 51 print "static const struct kn _nc_key_names[] = {" 52 } 53 printf "\t{ \"%s\", %s },\n", $1, $1; 54 } 55 first = 0; 56 } 57 58END { 59 if (bigstrings) { 60 printf "\t{ -1, 0 }};\n" 61 print "" 62 print "static const char key_names[] = "names";" 63 } else { 64 printf "\t{ 0, 0 }};\n" 65 } 66 print "" 67 print "#define SIZEOF_TABLE 256" 68 print "#define MyTable _nc_globals.keyname_table" 69 print "#define MyInit _nc_globals.init_keyname" 70 print "" 71 print "NCURSES_EXPORT(NCURSES_CONST char *)" 72 print "safe_keyname (SCREEN *sp, int c)" 73 print "{" 74 print " char name[20];" 75 print " NCURSES_CONST char *result = 0;" 76 print "" 77 print " if (c == -1) {" 78 print " result = \"-1\";" 79 print " } else {" 80 print " int i;" 81 if (bigstrings) { 82 print " for (i = 0; _nc_key_names[i].offset != -1; i++) {" 83 print " if (_nc_key_names[i].code == c) {" 84 print " result = (NCURSES_CONST char *)key_names + _nc_key_names[i].offset;" 85 print " break;" 86 print " }" 87 print " }" 88 } else { 89 print " for (i = 0; _nc_key_names[i].name != 0; i++) {" 90 print " if (_nc_key_names[i].code == c) {" 91 print " result = (NCURSES_CONST char *)_nc_key_names[i].name;" 92 print " break;" 93 print " }" 94 print " }" 95 } 96 print "" 97 print " if (result == 0 && (c >= 0 && c < SIZEOF_TABLE)) {" 98 print " if (MyTable == 0)" 99 print " MyTable = typeCalloc(char *, SIZEOF_TABLE);" 100 print "" 101 print " if (MyTable != 0) {" 102 print " int m_prefix = (sp == 0 || sp->_use_meta);" 103 print "" 104 print " /* if sense of meta() changed, discard cached data */" 105 print " if (MyInit != (m_prefix + 1)) {" 106 print " MyInit = m_prefix + 1;" 107 print " for (i = 0; i < SIZEOF_TABLE; ++i) {" 108 print " if (MyTable[i]) {" 109 print " FreeAndNull(MyTable[i]);" 110 print " }" 111 print " }" 112 print " }" 113 print "" 114 print " /* create and cache result as needed */" 115 print " if (MyTable[c] == 0) {" 116 print " int cc = c;" 117 print " char *p = name;" 118 print "#define P_LIMIT (sizeof(name) - (size_t) (p - name))" 119 print " if (cc >= 128 && m_prefix) {" 120 print " _nc_STRCPY(p, \"M-\", P_LIMIT);" 121 print " p += 2;" 122 print " cc -= 128;" 123 print " }" 124 print " if (cc < 32)" 125 print " _nc_SPRINTF(p, _nc_SLIMIT(P_LIMIT) \"^%c\", cc + '@');" 126 print " else if (cc == 127)" 127 print " _nc_STRCPY(p, \"^?\", P_LIMIT);" 128 print " else" 129 print " _nc_SPRINTF(p, _nc_SLIMIT(P_LIMIT) \"%c\", cc);" 130 print " MyTable[c] = strdup(name);" 131 print " }" 132 print " result = MyTable[c];" 133 print " }" 134 print "#if NCURSES_EXT_FUNCS && NCURSES_XNAMES" 135 print " } else if (result == 0 && HasTerminal(sp)) {" 136 print " int j, k;" 137 print " char * bound;" 138 print " TERMTYPE2 *tp = &TerminalType(TerminalOf(sp));" 139 print " unsigned save_trace = _nc_tracing;" 140 print "" 141 print " _nc_tracing = 0; /* prevent recursion via keybound() */" 142 print " for (j = 0; (bound = NCURSES_SP_NAME(keybound)(NCURSES_SP_ARGx c, j)) != 0; ++j) {" 143 print " for(k = STRCOUNT; k < (int) NUM_STRINGS(tp); k++) {" 144 print " if (tp->Strings[k] != 0 && !strcmp(bound, tp->Strings[k])) {" 145 print " result = ExtStrname(tp, k, strnames);" 146 print " break;" 147 print " }" 148 print " }" 149 print " free(bound);" 150 print " if (result != 0)" 151 print " break;" 152 print " }" 153 print " _nc_tracing = save_trace;" 154 print "#endif" 155 print " }" 156 print " }" 157 print " return result;" 158 print "}" 159 print "" 160 print "NCURSES_EXPORT(NCURSES_CONST char *)" 161 print "keyname (int c)" 162 print "{" 163 print " return safe_keyname (CURRENT_SCREEN, c);" 164 print "}" 165 print "" 166 print "#if NO_LEAKS" 167 print "void _nc_keyname_leaks(void)" 168 print "{" 169 print " if (MyTable != 0) {" 170 print " int j;" 171 print " for (j = 0; j < SIZEOF_TABLE; ++j) {" 172 print " FreeIfNeeded(MyTable[j]);" 173 print " }" 174 print " FreeAndNull(MyTable);" 175 print " }" 176 print "}" 177 print "#endif /* NO_LEAKS */" 178} 179