diff options
Diffstat (limited to 'contrib/groff/src/preproc/eqn/sqrt.cc')
| -rw-r--r-- | contrib/groff/src/preproc/eqn/sqrt.cc | 179 |
1 files changed, 0 insertions, 179 deletions
diff --git a/contrib/groff/src/preproc/eqn/sqrt.cc b/contrib/groff/src/preproc/eqn/sqrt.cc deleted file mode 100644 index bffa4f2..0000000 --- a/contrib/groff/src/preproc/eqn/sqrt.cc +++ /dev/null @@ -1,179 +0,0 @@ -// -*- C++ -*- -/* Copyright (C) 1989, 1990, 1991, 1992, 2002 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 2, 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 groff; see the file COPYING. If not, write to the Free Software -Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#include "eqn.h" -#include "pbox.h" - - -class sqrt_box : public pointer_box { -public: - sqrt_box(box *); - int compute_metrics(int style); - void output(); - void debug_print(); - void check_tabs(int); -}; - -box *make_sqrt_box(box *pp) -{ - return new sqrt_box(pp); -} - -sqrt_box::sqrt_box(box *pp) : pointer_box(pp) -{ -} - -#define SQRT_CHAR "\\(sr" -#define RADICAL_EXTENSION_CHAR "\\[radicalex]" - -#define SQRT_CHAIN "\\[sr\\\\n[" INDEX_REG "]]" -#define BAR_CHAIN "\\[radicalex\\\\n[" INDEX_REG "]]" - -int sqrt_box::compute_metrics(int style) -{ - // 11 - int r = p->compute_metrics(cramped_style(style)); - printf(".nr " TEMP_REG " \\n[" HEIGHT_FORMAT "]+\\n[" DEPTH_FORMAT - "]+%dM+(%dM/4)\n", - p->uid, p->uid, default_rule_thickness, - (style > SCRIPT_STYLE ? x_height : default_rule_thickness)); - printf(".nr " SIZE_FORMAT " \\n[.ps]\n", uid); - printf(".ds " SQRT_STRING_FORMAT " " SQRT_CHAR "\n", uid); - printf(".ds " BAR_STRING " " RADICAL_EXTENSION_CHAR "\n"); - printf(".nr " SQRT_WIDTH_FORMAT - " 0\\w" DELIMITER_CHAR SQRT_CHAR DELIMITER_CHAR "\n", - uid); - printf(".if \\n[rst]-\\n[rsb]-%dM<\\n[" TEMP_REG "] \\{", - default_rule_thickness); - - printf(".nr " INDEX_REG " 0\n" - ".de " TEMP_MACRO "\n" - ".ie c" SQRT_CHAIN " \\{" - ".ds " SQRT_STRING_FORMAT " " SQRT_CHAIN "\n" - ".ie c" BAR_CHAIN " .ds " BAR_STRING " " BAR_CHAIN "\n" - ".el .ds " BAR_STRING " " RADICAL_EXTENSION_CHAR "\n" - ".nr " SQRT_WIDTH_FORMAT - " 0\\w" DELIMITER_CHAR SQRT_CHAIN DELIMITER_CHAR "\n" - ".if \\\\n[rst]-\\\\n[rsb]-%dM<\\n[" TEMP_REG "] \\{" - ".nr " INDEX_REG " +1\n" - "." TEMP_MACRO "\n" - ".\\}\\}\n" - ".el .nr " INDEX_REG " 0-1\n" - "..\n" - "." TEMP_MACRO "\n", - uid, uid, default_rule_thickness); - - printf(".if \\n[" INDEX_REG "]<0 \\{"); - - // Determine the maximum point size - printf(".ps 1000\n"); - printf(".nr " MAX_SIZE_REG " \\n[.ps]\n"); - printf(".ps \\n[" SIZE_FORMAT "]u\n", uid); - // We define a macro that will increase the current point size - // until we get a radical sign that's tall enough or we reach - // the maximum point size. - printf(".de " TEMP_MACRO "\n" - ".nr " SQRT_WIDTH_FORMAT - " 0\\w" DELIMITER_CHAR "\\*[" SQRT_STRING_FORMAT "]" DELIMITER_CHAR "\n" - ".if \\\\n[rst]-\\\\n[rsb]-%dM<\\n[" TEMP_REG "]" - "&(\\\\n[.ps]<\\n[" MAX_SIZE_REG "]) \\{" - ".ps +1\n" - "." TEMP_MACRO "\n" - ".\\}\n" - "..\n" - "." TEMP_MACRO "\n", - uid, uid, default_rule_thickness); - - printf(".\\}\\}\n"); - - printf(".nr " SMALL_SIZE_FORMAT " \\n[.ps]\n", uid); - // set TEMP_REG to the amount by which the radical sign is too big - printf(".nr " TEMP_REG " \\n[rst]-\\n[rsb]-%dM-\\n[" TEMP_REG "]\n", - default_rule_thickness); - // If TEMP_REG is negative, the bottom of the radical sign should - // be -TEMP_REG above the bottom of p. If it's positive, the bottom - // of the radical sign should be TEMP_REG/2 below the bottom of p. - // This calculates the amount by which the baseline of the radical - // should be raised. - printf(".nr " SUP_RAISE_FORMAT " (-\\n[" TEMP_REG "]>?(-\\n[" TEMP_REG "]/2))" - "-\\n[rsb]-\\n[" DEPTH_FORMAT "]\n", uid, p->uid); - printf(".nr " HEIGHT_FORMAT " \\n[" HEIGHT_FORMAT "]" - ">?(\\n[" SUP_RAISE_FORMAT "]+\\n[rst])\n", - uid, p->uid, uid); - printf(".nr " DEPTH_FORMAT " \\n[" DEPTH_FORMAT "]" - ">?(-\\n[" SUP_RAISE_FORMAT "]-\\n[rsb])\n", - uid, p->uid, uid); - // Do this last, so we don't lose height and depth information on - // the radical sign. - // Remember that the width of the bar might be greater than the width of p. - - printf(".nr " TEMP_REG " " - "\\n[" WIDTH_FORMAT "]" - ">?\\w" DELIMITER_CHAR "\\*[" BAR_STRING "]" DELIMITER_CHAR "\n", - p->uid); - printf(".as " SQRT_STRING_FORMAT " " - "\\l'\\n[" TEMP_REG "]u\\&\\*[" BAR_STRING "]'\n", - uid); - printf(".nr " WIDTH_FORMAT " \\n[" TEMP_REG "]" - "+\\n[" SQRT_WIDTH_FORMAT "]\n", - uid, uid); - - if (r) - printf(".nr " MARK_REG " +\\n[" SQRT_WIDTH_FORMAT "]\n", uid); - // the top of the bar might be higher than the top of the radical sign - printf(".nr " HEIGHT_FORMAT " \\n[" HEIGHT_FORMAT "]" - ">?(\\n[" SUP_RAISE_FORMAT "]+\\n[rst])\n", - uid, p->uid, uid); - // put a bit of extra space above the bar - printf(".nr " HEIGHT_FORMAT " +%dM\n", uid, default_rule_thickness); - printf(".ps \\n[" SIZE_FORMAT "]u\n", uid); - return r; -} - -void sqrt_box::output() -{ - printf("\\Z" DELIMITER_CHAR); - printf("\\s[\\n[" SMALL_SIZE_FORMAT "]u]", uid); - printf("\\v'-\\n[" SUP_RAISE_FORMAT "]u'", uid); - printf("\\*[" SQRT_STRING_FORMAT "]", uid); - printf("\\s[\\n[" SIZE_FORMAT "]u]", uid); - printf(DELIMITER_CHAR); - - printf("\\Z" DELIMITER_CHAR); - printf("\\h'\\n[" WIDTH_FORMAT "]u-\\n[" WIDTH_FORMAT "]u" - "+\\n[" SQRT_WIDTH_FORMAT "]u/2u'", - uid, p->uid, uid); - p->output(); - printf(DELIMITER_CHAR); - - printf("\\h'\\n[" WIDTH_FORMAT "]u'", uid); -} - -void sqrt_box::debug_print() -{ - fprintf(stderr, "sqrt { "); - p->debug_print(); - fprintf(stderr, " }"); -} - -void sqrt_box::check_tabs(int level) -{ - p->check_tabs(level + 1); -} |
