diff options
Diffstat (limited to 'contrib/groff/src/devices/grohtml/html-table.cc')
| -rw-r--r-- | contrib/groff/src/devices/grohtml/html-table.cc | 687 |
1 files changed, 0 insertions, 687 deletions
diff --git a/contrib/groff/src/devices/grohtml/html-table.cc b/contrib/groff/src/devices/grohtml/html-table.cc deleted file mode 100644 index a2bb255..0000000 --- a/contrib/groff/src/devices/grohtml/html-table.cc +++ /dev/null @@ -1,687 +0,0 @@ -// -*- C++ -*- -/* Copyright (C) 2002 Free Software Foundation, Inc. - * - * Gaius Mulley (gaius@glam.ac.uk) wrote html-table.cc - * - * html-table.h - * - * provides the methods necessary to handle indentation and tab - * positions using html tables. - */ - -/* -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 "driver.h" -#include "stringclass.h" -#include "cset.h" -#include "html-table.h" -#include "ctype.h" -#include "html.h" - -#if !defined(TRUE) -# define TRUE (1==1) -#endif -#if !defined(FALSE) -# define FALSE (1==0) -#endif - -tabs::tabs () - : tab(NULL) -{ -} - -tabs::~tabs () -{ - delete_list(); -} - -/* - * delete_list - frees the tab list and sets tab to NULL. - */ - -void tabs::delete_list (void) -{ - tab_position *p = tab; - tab_position *q; - - while (p != NULL) { - q = p; - p = p->next; - free(q); - } - tab = NULL; -} - -void tabs::clear (void) -{ - delete_list(); -} - -/* - * compatible - returns TRUE if the tab stops in, s, do - * not conflict with the current tab stops. - * The new tab stops are _not_ placed into - * this class. - */ - -int tabs::compatible (const char *s) -{ - char align; - int total=0; - tab_position *last = tab; - - if (last == NULL) - return FALSE; // no tab stops defined - - // move over tag name - while ((*s != (char)0) && !isspace(*s)) - s++; - - while (*s != (char)0 && last != NULL) { - // move over white space - while ((*s != (char)0) && isspace(*s)) - s++; - // collect alignment - align = *s; - // move over alignment - s++; - // move over white space - while ((*s != (char)0) && isspace(*s)) - s++; - // collect tab position - total += atoi(s); - // move over tab position - while ((*s != (char)0) && !isspace(*s)) - s++; - if (last->alignment != align || last->position != total) - return FALSE; - - last = last->next; - } - return TRUE; -} - -/* - * init - scans the string, s, and initializes the tab stops. - */ - -void tabs::init (const char *s) -{ - char align; - int total=0; - tab_position *last = NULL; - - clear(); // remove any tab stops - - // move over tag name - while ((*s != (char)0) && !isspace(*s)) - s++; - - while (*s != (char)0) { - // move over white space - while ((*s != (char)0) && isspace(*s)) - s++; - // collect alignment - align = *s; - // move over alignment - s++; - // move over white space - while ((*s != (char)0) && isspace(*s)) - s++; - // collect tab position - total = atoi(s); - // move over tab position - while ((*s != (char)0) && !isspace(*s)) - s++; - if (last == NULL) { - tab = (tab_position *)malloc(sizeof(tab_position)); - last = tab; - } else { - last->next = (tab_position *)malloc(sizeof(tab_position)); - last = last->next; - } - last->alignment = align; - last->position = total; - last->next = NULL; - } -} - -/* - * find_tab - returns the tab number corresponding to the position, pos. - */ - -int tabs::find_tab (int pos) -{ - tab_position *p; - int i=0; - - for (p = tab; p != NULL; p = p->next) { - i++; - if (p->position == pos) - return i; - } - return 0; -} - -/* - * get_tab_pos - returns the, nth, tab position - */ - -int tabs::get_tab_pos (int n) -{ - tab_position *p; - - n--; - for (p = tab; (p != NULL) && (n>0); p = p->next) { - n--; - if (n == 0) - return p->position; - } - return 0; -} - -char tabs::get_tab_align (int n) -{ - tab_position *p; - - n--; - for (p = tab; (p != NULL) && (n>0); p = p->next) { - n--; - if (n == 0) - return p->alignment; - } - return 'L'; -} - -/* - * dump_tab - display tab positions - */ - -void tabs::dump_tabs (void) -{ - int i=1; - tab_position *p; - - for (p = tab; p != NULL; p = p->next) { - printf("tab %d is %d\n", i, p->position); - i++; - } -} - -/* - * html_table - methods - */ - -html_table::html_table (simple_output *op, int linelen) - : columns(NULL), out(op), linelength(linelen), last_col(NULL), start_space(FALSE) -{ - tab_stops = new tabs(); -} - -html_table::~html_table () -{ - if (tab_stops != NULL) - delete tab_stops; -} - -/* - * remove_cols - remove a list of columns as defined by, c. - */ - -void html_table::remove_cols (cols *c) -{ - cols *p; - - while (c != NULL) { - p = c; - c = c->next; - free(p); - } -} - -/* - * set_linelength - sets the line length value in this table. - * It also adds an extra blank column to the - * table should linelen exceed the last column. - */ - -void html_table::set_linelength (int linelen) -{ - cols *p = NULL; - cols *c; - linelength = linelen; - - for (c = columns; c != NULL; c = c->next) { - if (c->right > linelength) { - c->right = linelength; - remove_cols(c->next); - c->next = NULL; - return; - } - p = c; - } - if (p != NULL && p->right != 0) - add_column(p->no+1, p->right+1, linelen, 'L'); -} - -/* - * get_effective_linelength - - */ - -int html_table::get_effective_linelength (void) -{ - if (columns != NULL) - return linelength - columns->left; - else - return linelength; -} - -/* - * add_indent - adds the indent to a table. - */ - -void html_table::add_indent (int indent) -{ - if (columns != NULL && columns->left > indent) - add_column(0, indent, columns->left-1, 'L'); -} - -/* - * emit_table_header - emits the html header for this table. - */ - -void html_table::emit_table_header (int space) -{ - if (columns == NULL) - return; - - // dump_table(); - - last_col = NULL; - if (linelength > 0) { - int n = no_columns() + no_gaps(); - - out->nl(); - out->nl(); - if (space) - out->put_string("<p>"); - start_space = space; - out->put_string("<table width=\"100%\" border=0 rules=\"none\" frame=\"void\"\n cols=\"").put_number(n).put_string("\" cellspacing=\"0\" cellpadding=\"0\">").nl(); - out->put_string("<tr valign=\"top\" align=\"left\">").nl(); - } -} - -/* - * get_right - returns the right most position of this column. - */ - -int html_table::get_right (cols *c) -{ - if (c != NULL && c->right > 0) - return c->right; - if (c->next != NULL) - return c->left; - return linelength; -} - -/* - * emit_col - moves onto column, n. - */ - -void html_table::emit_col (int n) -{ - cols *c = columns; - cols *b = columns; - int width = 0; - - // must be a different row - if (last_col != NULL && n <= last_col->no) - emit_new_row(); - - while (c != NULL && c->no < n) - c = c->next; - - // can we find column, n? - if (c != NULL && c->no == n) { - // shutdown previous column - if (last_col != NULL) - out->put_string("</td>").nl(); - - // find previous column - if (last_col == NULL) - b = columns; - else - b = last_col; - - // have we a gap? - if (last_col != NULL) { - if (is_gap(b)) - out->put_string("<td width=\"").put_number(is_gap(b)).put_string("%\"></td>").nl(); - b = b->next; - } - - // move across to column n - while (b != c) { - width = ((get_right(b) - b->left) * 100)/get_effective_linelength(); - out->put_string("<td width=\"").put_number(width).put_string("%\"></td>").nl(); - // have we a gap? - if (is_gap(b)) - out->put_string("<td width=\"").put_number(is_gap(b)).put_string("%\"></td>").nl(); - b = b->next; - } - width = ((get_right(b) - b->left) * 100)/get_effective_linelength(); - switch (b->alignment) { - - case 'C': out->put_string("<td width=\"").put_number(width).put_string("%\" align=center>").nl(); - break; - case 'R': out->put_string("<td width=\"").put_number(width).put_string("%\" align=right>").nl(); - break; - default: - out->put_string("<td width=\"").put_number(width).put_string("%\">").nl(); - } - // remember column, b - last_col = b; - } -} - -/* - * finish_row - - */ - -void html_table::finish_row (void) -{ - int n = 0; - cols *c; - - if (last_col != NULL) { - for (c = last_col->next; c != NULL; c = c->next) - n = c->no; - - if (n > 0) - emit_col(n); - out->put_string("</td>").nl(); - } -} - -/* - * emit_new_row - move to the next row. - */ - -void html_table::emit_new_row (void) -{ - finish_row(); - out->put_string("<tr valign=\"top\" align=\"left\">").nl(); - last_col = NULL; -} - -void html_table::emit_finish_table (void) -{ - finish_row(); - // out->put_string("linelength = ").put_number(linelength).nl(); - out->put_string("</table>"); - if (start_space) - out->put_string("</p>"); - out->nl(); -} - -/* - * add_column - adds a column. It returns FALSE if hstart..hend - * crosses into a different columns. - */ - -int html_table::add_column (int coln, int hstart, int hend, char align) -{ - cols *c = get_column(coln); - - if (c == NULL) - return insert_column(coln, hstart, hend, align); - else - return modify_column(c, hstart, hend, align); -} - -/* - * get_column - returns the column, coln. - */ - -cols *html_table::get_column (int coln) -{ - cols *c = columns; - - while (c != NULL && coln != c->no) - c = c->next; - - if (c != NULL && coln == c->no) - return c; - else - return NULL; -} - -/* - * insert_column - inserts a column, coln. - * It returns TRUE if it does not bump into - * another column. - */ - -int html_table::insert_column (int coln, int hstart, int hend, char align) -{ - cols *c = columns; - cols *l = NULL; - cols *n = NULL; - - while (c != NULL && c->no < coln) { - l = c; - c = c->next; - } - if ((l != NULL) && (hstart < l->right)) - return FALSE; // new column bumps into previous one - - if ((l != NULL) && (l->next != NULL) && - (l->next->left < hend)) - return FALSE; // new column bumps into next one - - n = (cols *)malloc(sizeof(cols)); - if (l == NULL) { - n->next = columns; - columns = n; - } else { - n->next = l->next; - l->next = n; - } - n->left = hstart; - n->right = hend; - n->no = coln; - n->alignment = align; - return TRUE; -} - -/* - * modify_column - given a column, c, modify the width to - * contain hstart..hend. - * It returns TRUE if it does not clash with - * the next or previous column. - */ - -int html_table::modify_column (cols *c, int hstart, int hend, char align) -{ - cols *l = columns; - - while (l != NULL && l->next != c) - l = l->next; - - if ((l != NULL) && (hstart < l->right)) - return FALSE; // new column bumps into previous one - - if ((c->next != NULL) && (c->next->left < hend)) - return FALSE; // new column bumps into next one - - if (c->left > hstart) - c->left = hstart; - - if (c->right < hend) - c->right = hend; - - c->alignment = align; - - return TRUE; -} - -/* - * find_tab_column - finds the column number for position, pos. - * It searches through the list tab stops. - */ - -int html_table::find_tab_column (int pos) -{ - // remember the first column is reserved for un tabbed glyphs - return tab_stops->find_tab(pos)+1; -} - -/* - * find_column - find the column number for position, pos. - * It searches through the list of columns. - */ - -int html_table::find_column (int pos) -{ - int p=0; - cols *c; - - for (c = columns; c != NULL; c = c->next) { - if (c->left > pos) - return p; - p = c->no; - } - return p; -} - -/* - * no_columns - returns the number of table columns (rather than tabs) - */ - -int html_table::no_columns (void) -{ - int n=0; - cols *c; - - for (c = columns; c != NULL; c = c->next) - n++; - return n; -} - -/* - * is_gap - returns the gap between column, c, and the next column. - */ - -int html_table::is_gap (cols *c) -{ - if (c == NULL || c->right == 0 || c->next == NULL) - return 0; - else - return (c->next->left - c->right)*100/get_effective_linelength(); -} - -/* - * no_gaps - returns the number of table gaps between the columns - */ - -int html_table::no_gaps (void) -{ - int n=0; - cols *c; - - for (c = columns; c != NULL; c = c->next) - if (is_gap(c)) - n++; - return n; -} - -/* - * get_tab_pos - returns the, nth, tab position - */ - -int html_table::get_tab_pos (int n) -{ - return tab_stops->get_tab_pos(n); -} - -char html_table::get_tab_align (int n) -{ - return tab_stops->get_tab_align(n); -} - - -void html_table::dump_table (void) -{ - if (columns != NULL) { - cols *c; - for (c = columns; c != NULL; c = c->next) { - printf("column %d %d..%d %c\n", c->no, c->left, c->right, c->alignment); - } - } else - tab_stops->dump_tabs(); -} - -/* - * html_indent - creates an indent with indentation, ind, given - * a line length of linelength. - */ - -html_indent::html_indent (simple_output *op, int ind, int pageoffset, int linelength) -{ - table = new html_table(op, linelength); - - table->add_column(1, ind+pageoffset, linelength, 'L'); - table->add_indent(pageoffset); - in = ind; - pg = pageoffset; - ll = linelength; - is_used = FALSE; -} - -html_indent::~html_indent (void) -{ - end(); - delete table; -} - -void html_indent::begin (int space) -{ - if (! is_used) { - table->emit_table_header(space); - table->emit_col(1); - is_used = TRUE; - } -} - -void html_indent::end (void) -{ - if (is_used) - table->emit_finish_table(); - is_used = FALSE; -} - -/* - * get_reg - collects the registers as supplied during initialization. - */ - -void html_indent::get_reg (int *ind, int *pageoffset, int *linelength) -{ - *ind = in; - *pageoffset = pg; - *linelength = ll; -} |
