ncurses 6.2 - patch 20200212
[ncurses.git] / ncurses / base / MKkeyname.awk
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 ##############################################################################
30 BEGIN {
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
58 END {
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 }