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-rw-r--r--src/utils/addftinfo/guess.cpp489
1 files changed, 489 insertions, 0 deletions
diff --git a/src/utils/addftinfo/guess.cpp b/src/utils/addftinfo/guess.cpp
new file mode 100644
index 0000000..08bbe05
--- /dev/null
+++ b/src/utils/addftinfo/guess.cpp
@@ -0,0 +1,489 @@
+// -*- C++ -*-
+/* Copyright (C) 1989-2020 Free Software Foundation, Inc.
+ Written by James Clark (jjc@jclark.com)
+
+This file is part of groff.
+
+groff is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+groff is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include "guess.h"
+
+void guess(const char *s, const font_params &param, char_metric *metric)
+{
+ int &height = metric->height;
+ int &depth = metric->depth;
+
+ metric->ic = 0;
+ metric->left_ic = 0;
+ metric->sk = 0;
+ height = 0;
+ depth = 0;
+ if (s[0] == '\0' || (s[1] != '\0' && s[2] != '\0'))
+ goto do_default;
+#define HASH(c1, c2) (((unsigned char)(c1) << 8) | (unsigned char)(c2))
+ switch (HASH(s[0], s[1])) {
+ default:
+ do_default:
+ if (metric->type & 01)
+ depth = param.desc_depth;
+ if (metric->type & 02)
+ height = param.asc_height;
+ else
+ height = param.x_height;
+ break;
+ case HASH('\\', '|'):
+ case HASH('\\', '^'):
+ case HASH('\\', '&'):
+ // these have zero height and depth
+ break;
+ case HASH('f', 0):
+ height = param.asc_height;
+ if (param.italic)
+ depth = param.desc_depth;
+ break;
+ case HASH('a', 0):
+ case HASH('c', 0):
+ case HASH('e', 0):
+ case HASH('m', 0):
+ case HASH('n', 0):
+ case HASH('o', 0):
+ case HASH('r', 0):
+ case HASH('s', 0):
+ case HASH('u', 0):
+ case HASH('v', 0):
+ case HASH('w', 0):
+ case HASH('x', 0):
+ case HASH('z', 0):
+ height = param.x_height;
+ break;
+ case HASH('i', 0):
+ height = param.x_height;
+ break;
+ case HASH('b', 0):
+ case HASH('d', 0):
+ case HASH('h', 0):
+ case HASH('k', 0):
+ case HASH('l', 0):
+ case HASH('F', 'i'):
+ case HASH('F', 'l'):
+ case HASH('f', 'f'):
+ case HASH('f', 'i'):
+ case HASH('f', 'l'):
+ height = param.asc_height;
+ break;
+ case HASH('t', 0):
+ height = param.asc_height;
+ break;
+ case HASH('g', 0):
+ case HASH('p', 0):
+ case HASH('q', 0):
+ case HASH('y', 0):
+ height = param.x_height;
+ depth = param.desc_depth;
+ break;
+ case HASH('j', 0):
+ height = param.x_height;
+ depth = param.desc_depth;
+ break;
+ case HASH('A', 0):
+ case HASH('B', 0):
+ case HASH('C', 0):
+ case HASH('D', 0):
+ case HASH('E', 0):
+ case HASH('F', 0):
+ case HASH('G', 0):
+ case HASH('H', 0):
+ case HASH('I', 0):
+ case HASH('J', 0):
+ case HASH('K', 0):
+ case HASH('L', 0):
+ case HASH('M', 0):
+ case HASH('N', 0):
+ case HASH('O', 0):
+ case HASH('P', 0):
+ case HASH('Q', 0):
+ case HASH('R', 0):
+ case HASH('S', 0):
+ case HASH('T', 0):
+ case HASH('U', 0):
+ case HASH('V', 0):
+ case HASH('W', 0):
+ case HASH('X', 0):
+ case HASH('Y', 0):
+ case HASH('Z', 0):
+ height = param.cap_height;
+ break;
+ case HASH('*', 'A'):
+ case HASH('*', 'B'):
+ case HASH('*', 'C'):
+ case HASH('*', 'D'):
+ case HASH('*', 'E'):
+ case HASH('*', 'F'):
+ case HASH('*', 'G'):
+ case HASH('*', 'H'):
+ case HASH('*', 'I'):
+ case HASH('*', 'K'):
+ case HASH('*', 'L'):
+ case HASH('*', 'M'):
+ case HASH('*', 'N'):
+ case HASH('*', 'O'):
+ case HASH('*', 'P'):
+ case HASH('*', 'Q'):
+ case HASH('*', 'R'):
+ case HASH('*', 'S'):
+ case HASH('*', 'T'):
+ case HASH('*', 'U'):
+ case HASH('*', 'W'):
+ case HASH('*', 'X'):
+ case HASH('*', 'Y'):
+ case HASH('*', 'Z'):
+ height = param.cap_height;
+ break;
+ case HASH('0', 0):
+ case HASH('1', 0):
+ case HASH('2', 0):
+ case HASH('3', 0):
+ case HASH('4', 0):
+ case HASH('5', 0):
+ case HASH('6', 0):
+ case HASH('7', 0):
+ case HASH('8', 0):
+ case HASH('9', 0):
+ case HASH('1', '2'):
+ case HASH('1', '4'):
+ case HASH('3', '4'):
+ height = param.fig_height;
+ break;
+ case HASH('(', 0):
+ case HASH(')', 0):
+ case HASH('[', 0):
+ case HASH(']', 0):
+ case HASH('{', 0):
+ case HASH('}', 0):
+ height = param.body_height;
+ depth = param.body_depth;
+ break;
+ case HASH('i', 's'):
+ height = (param.em*3)/4;
+ depth = param.em/4;
+ break;
+ case HASH('*', 'a'):
+ case HASH('*', 'e'):
+ case HASH('*', 'i'):
+ case HASH('*', 'k'):
+ case HASH('*', 'n'):
+ case HASH('*', 'o'):
+ case HASH('*', 'p'):
+ case HASH('*', 's'):
+ case HASH('*', 't'):
+ case HASH('*', 'u'):
+ case HASH('*', 'w'):
+ height = param.x_height;
+ break;
+ case HASH('*', 'd'):
+ case HASH('*', 'l'):
+ height = param.asc_height;
+ break;
+ case HASH('*', 'g'):
+ case HASH('*', 'h'):
+ case HASH('*', 'm'):
+ case HASH('*', 'r'):
+ case HASH('*', 'x'):
+ case HASH('*', 'y'):
+ height = param.x_height;
+ depth = param.desc_depth;
+ break;
+ case HASH('*', 'b'):
+ case HASH('*', 'c'):
+ case HASH('*', 'f'):
+ case HASH('*', 'q'):
+ case HASH('*', 'z'):
+ height = param.asc_height;
+ depth = param.desc_depth;
+ break;
+ case HASH('t', 's'):
+ height = param.x_height;
+ depth = param.desc_depth;
+ break;
+ case HASH('!', 0):
+ case HASH('?', 0):
+ case HASH('"', 0):
+ case HASH('#', 0):
+ case HASH('$', 0):
+ case HASH('%', 0):
+ case HASH('&', 0):
+ case HASH('*', 0):
+ case HASH('+', 0):
+ height = param.asc_height;
+ break;
+ case HASH('`', 0):
+ case HASH('\'', 0):
+ height = param.asc_height;
+ break;
+ case HASH('~', 0):
+ case HASH('^', 0):
+ case HASH('a', 'a'):
+ case HASH('g', 'a'):
+ height = param.asc_height;
+ break;
+ case HASH('r', 'u'):
+ case HASH('.', 0):
+ break;
+ case HASH(',', 0):
+ depth = param.comma_depth;
+ break;
+ case HASH('m', 'i'):
+ case HASH('-', 0):
+ case HASH('h', 'y'):
+ case HASH('e', 'm'):
+ height = param.x_height;
+ break;
+ case HASH(':', 0):
+ height = param.x_height;
+ break;
+ case HASH(';', 0):
+ height = param.x_height;
+ depth = param.comma_depth;
+ break;
+ case HASH('=', 0):
+ case HASH('e', 'q'):
+ height = param.x_height;
+ break;
+ case HASH('<', 0):
+ case HASH('>', 0):
+ case HASH('>', '='):
+ case HASH('<', '='):
+ case HASH('@', 0):
+ case HASH('/', 0):
+ case HASH('|', 0):
+ case HASH('\\', 0):
+ height = param.asc_height;
+ break;
+ case HASH('_', 0):
+ case HASH('u', 'l'):
+ case HASH('\\', '_'):
+ depth = param.em/4;
+ break;
+ case HASH('r', 'n'):
+ height = (param.em*3)/4;
+ break;
+ case HASH('s', 'r'):
+ height = (param.em*3)/4;
+ depth = param.em/4;
+ break;
+ case HASH('b', 'u'):
+ case HASH('s', 'q'):
+ case HASH('d', 'e'):
+ case HASH('d', 'g'):
+ case HASH('f', 'm'):
+ case HASH('c', 't'):
+ case HASH('r', 'g'):
+ case HASH('c', 'o'):
+ case HASH('p', 'l'):
+ case HASH('*', '*'):
+ case HASH('s', 'c'):
+ case HASH('s', 'l'):
+ case HASH('=', '='):
+ case HASH('~', '='):
+ case HASH('a', 'p'):
+ case HASH('!', '='):
+ case HASH('-', '>'):
+ case HASH('<', '-'):
+ case HASH('u', 'a'):
+ case HASH('d', 'a'):
+ case HASH('m', 'u'):
+ case HASH('d', 'i'):
+ case HASH('+', '-'):
+ case HASH('c', 'u'):
+ case HASH('c', 'a'):
+ case HASH('s', 'b'):
+ case HASH('s', 'p'):
+ case HASH('i', 'b'):
+ case HASH('i', 'p'):
+ case HASH('i', 'f'):
+ case HASH('p', 'd'):
+ case HASH('g', 'r'):
+ case HASH('n', 'o'):
+ case HASH('p', 't'):
+ case HASH('e', 's'):
+ case HASH('m', 'o'):
+ case HASH('b', 'r'):
+ case HASH('d', 'd'):
+ case HASH('r', 'h'):
+ case HASH('l', 'h'):
+ case HASH('o', 'r'):
+ case HASH('c', 'i'):
+ height = param.asc_height;
+ break;
+ case HASH('l', 't'):
+ case HASH('l', 'b'):
+ case HASH('r', 't'):
+ case HASH('r', 'b'):
+ case HASH('l', 'k'):
+ case HASH('r', 'k'):
+ case HASH('b', 'v'):
+ case HASH('l', 'f'):
+ case HASH('r', 'f'):
+ case HASH('l', 'c'):
+ case HASH('r', 'c'):
+ height = (param.em*3)/4;
+ depth = param.em/4;
+ break;
+#if 0
+ case HASH('%', '0'):
+ case HASH('-', '+'):
+ case HASH('-', 'D'):
+ case HASH('-', 'd'):
+ case HASH('-', 'd'):
+ case HASH('-', 'h'):
+ case HASH('.', 'i'):
+ case HASH('.', 'j'):
+ case HASH('/', 'L'):
+ case HASH('/', 'O'):
+ case HASH('/', 'l'):
+ case HASH('/', 'o'):
+ case HASH('=', '~'):
+ case HASH('A', 'E'):
+ case HASH('A', 'h'):
+ case HASH('A', 'N'):
+ case HASH('C', 's'):
+ case HASH('D', 'o'):
+ case HASH('F', 'c'):
+ case HASH('F', 'o'):
+ case HASH('I', 'J'):
+ case HASH('I', 'm'):
+ case HASH('O', 'E'):
+ case HASH('O', 'f'):
+ case HASH('O', 'K'):
+ case HASH('O', 'm'):
+ case HASH('O', 'R'):
+ case HASH('P', 'o'):
+ case HASH('R', 'e'):
+ case HASH('S', '1'):
+ case HASH('S', '2'):
+ case HASH('S', '3'):
+ case HASH('T', 'P'):
+ case HASH('T', 'p'):
+ case HASH('Y', 'e'):
+ case HASH('\\', '-'):
+ case HASH('a', '"'):
+ case HASH('a', '-'):
+ case HASH('a', '.'):
+ case HASH('a', '^'):
+ case HASH('a', 'b'):
+ case HASH('a', 'c'):
+ case HASH('a', 'd'):
+ case HASH('a', 'e'):
+ case HASH('a', 'h'):
+ case HASH('a', 'o'):
+ case HASH('a', 't'):
+ case HASH('a', '~'):
+ case HASH('b', 'a'):
+ case HASH('b', 'b'):
+ case HASH('b', 's'):
+ case HASH('c', '*'):
+ case HASH('c', '+'):
+ case HASH('f', '/'):
+ case HASH('f', 'a'):
+ case HASH('f', 'c'):
+ case HASH('f', 'o'):
+ case HASH('h', 'a'):
+ case HASH('h', 'o'):
+ case HASH('i', 'j'):
+ case HASH('l', 'A'):
+ case HASH('l', 'B'):
+ case HASH('l', 'C'):
+ case HASH('m', 'd'):
+ case HASH('n', 'c'):
+ case HASH('n', 'e'):
+ case HASH('n', 'm'):
+ case HASH('o', 'A'):
+ case HASH('o', 'a'):
+ case HASH('o', 'e'):
+ case HASH('o', 'q'):
+ case HASH('p', 'l'):
+ case HASH('p', 'p'):
+ case HASH('p', 's'):
+ case HASH('r', '!'):
+ case HASH('r', '?'):
+ case HASH('r', 'A'):
+ case HASH('r', 'B'):
+ case HASH('r', 'C'):
+ case HASH('r', 's'):
+ case HASH('s', 'h'):
+ case HASH('s', 's'):
+ case HASH('t', 'e'):
+ case HASH('t', 'f'):
+ case HASH('t', 'i'):
+ case HASH('t', 'm'):
+ case HASH('~', '~'):
+ case HASH('v', 'S'):
+ case HASH('v', 'Z'):
+ case HASH('v', 's'):
+ case HASH('v', 'z'):
+ case HASH('^', 'A'):
+ case HASH('^', 'E'):
+ case HASH('^', 'I'):
+ case HASH('^', 'O'):
+ case HASH('^', 'U'):
+ case HASH('^', 'a'):
+ case HASH('^', 'e'):
+ case HASH('^', 'i'):
+ case HASH('^', 'o'):
+ case HASH('^', 'u'):
+ case HASH('`', 'A'):
+ case HASH('`', 'E'):
+ case HASH('`', 'I'):
+ case HASH('`', 'O'):
+ case HASH('`', 'U'):
+ case HASH('`', 'a'):
+ case HASH('`', 'e'):
+ case HASH('`', 'i'):
+ case HASH('`', 'o'):
+ case HASH('`', 'u'):
+ case HASH('~', 'A'):
+ case HASH('~', 'N'):
+ case HASH('~', 'O'):
+ case HASH('~', 'a'):
+ case HASH('~', 'n'):
+ case HASH('~', 'o'):
+ case HASH('\'', 'A'):
+ case HASH('\'', 'C'):
+ case HASH('\'', 'E'):
+ case HASH('\'', 'I'):
+ case HASH('\'', 'O'):
+ case HASH('\'', 'U'):
+ case HASH('\'', 'a'):
+ case HASH('\'', 'c'):
+ case HASH('\'', 'e'):
+ case HASH('\'', 'i'):
+ case HASH('\'', 'o'):
+ case HASH('\'', 'u')
+ case HASH(':', 'A'):
+ case HASH(':', 'E'):
+ case HASH(':', 'I'):
+ case HASH(':', 'O'):
+ case HASH(':', 'U'):
+ case HASH(':', 'Y'):
+ case HASH(':', 'a'):
+ case HASH(':', 'e'):
+ case HASH(':', 'i'):
+ case HASH(':', 'o'):
+ case HASH(':', 'u'):
+ case HASH(':', 'y'):
+ case HASH(',', 'C'):
+ case HASH(',', 'c'):
+#endif
+ }
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-10 06:06:32 +0000