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cmds_edit.c
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cmds_edit.c
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/*******************************************************************************
* Copyright (c) 2013-2017, Andrés Martinelli <[email protected] *
* All rights reserved. *
* *
* This file is a part of SC-IM *
* *
* SC-IM is a spreadsheet program that is based on SC. The original authors *
* of SC are James Gosling and Mark Weiser, and mods were later added by *
* Chuck Martin. *
* *
* Redistribution and use in source and binary forms, with or without *
* modification, are permitted provided that the following conditions are met: *
* 1. Redistributions of source code must retain the above copyright *
* notice, this list of conditions and the following disclaimer. *
* 2. Redistributions in binary form must reproduce the above copyright *
* notice, this list of conditions and the following disclaimer in the *
* documentation and/or other materials provided with the distribution. *
* 3. All advertising materials mentioning features or use of this software *
* must display the following acknowledgement: *
* This product includes software developed by Andrés Martinelli *
* <[email protected]>. *
* 4. Neither the name of the Andrés Martinelli nor the *
* names of other contributors may be used to endorse or promote products *
* derived from this software without specific prior written permission. *
* *
* THIS SOFTWARE IS PROVIDED BY ANDRES MARTINELLI ''AS IS'' AND ANY *
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED *
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE *
* DISCLAIMED. IN NO EVENT SHALL ANDRES MARTINELLI BE LIABLE FOR ANY *
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES *
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;*
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND *
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT *
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE *
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *
*******************************************************************************/
/**
* \file cmds_edit.c
* \author Andrés Martinelli <[email protected]>
* \date 2017-07-18
* \brief TODO Write a tbrief file description.
*/
#include <string.h>
#include <wchar.h>
#include <wctype.h>
#include "cmds.h"
#include "tui.h"
#include "buffer.h"
#include "sc.h" // for rescol
#include "cmds_edit.h"
#include "utils/string.h"
#include "interp.h"
#include "marks.h"
#include "conf.h"
#include "history.h"
// this macro is used to determinate a word over a WORD
#define istext(a) (iswalnum(a) || ((a) == L'_'))
#ifdef INS_HISTORY_FILE
extern char ori_insert_edit_submode;
#endif
static wint_t wi; /**< char read from stdin */
/**
* \brief TODO Document do_editmode()
*
* \param[in] sb
*
* \return none
*/
void do_editmode(struct block * sb) {
int pos;
int initial_position;
if (sb->value == L'h' || sb->value == OKEY_LEFT) { // LEFT
if (real_inputline_pos) {
real_inputline_pos--;
inputline_pos = wcswidth(inputline, real_inputline_pos);
ui_show_header();
}
return;
} else if (sb->value == L'l' || sb->value == OKEY_RIGHT) { // RIGHT
if (real_inputline_pos < wcslen(inputline)-1) {
real_inputline_pos++;
inputline_pos = wcswidth(inputline, real_inputline_pos);
ui_show_header();
}
return;
} else if (sb->value == L' ' && ( wcslen(inputline) < (COLS - 14) ) ) { // SPACE
add_wchar(inputline, L' ', real_inputline_pos);
ui_show_header();
return;
} else if (sb->value == L'^') { // ^
pos = first_nonblank_char();
if (pos == -1) return;
real_inputline_pos = pos;
inputline_pos = wcswidth(inputline, real_inputline_pos);
ui_show_header();
return;
} else if (sb->value == L'g') { // ^
if (ui_getch_b(&wi) == -1 || wi != L'_') return;
pos = last_nonblank_char();
if (pos == -1) return;
real_inputline_pos = pos;
inputline_pos = wcswidth(inputline, real_inputline_pos);
ui_show_header();
return;
} else if (sb->value == L'0' || sb->value == OKEY_HOME) { // 0
inputline_pos = 0;
real_inputline_pos = 0;
ui_show_header();
return;
} else if (sb->value == L'$' || sb->value == OKEY_END) { // $
inputline_pos = wcswidth(inputline, wcslen(inputline)) - 1;
real_inputline_pos = wcslen(inputline) - 1;
ui_show_header();
return;
} else if (sb->value == L'I') { // I
inputline_pos = 0;
real_inputline_pos = 0;
#ifdef INS_HISTORY_FILE
ori_insert_edit_submode = insert_edit_submode;
add(insert_history, L"");
#endif
chg_mode(insert_edit_submode);
ui_show_header();
return;
} else if (sb->value == L'i' || sb->value == L'=') { // i o =
#ifdef INS_HISTORY_FILE
ori_insert_edit_submode = insert_edit_submode;
add(insert_history, L"");
#endif
chg_mode(insert_edit_submode);
ui_show_header();
return;
} else if (sb->value == L'x') { // x
del_back_char();
ui_show_header();
return;
} else if (sb->value == L'X') { // X
del_for_char();
ui_show_header();
return;
} else if (sb->value == L'r') { // r
//curs_set(1);
if (ui_getch_b(&wi) != -1) inputline[real_inputline_pos] = wi;
//curs_set(2);
ui_show_header();
return;
} else if (find_val(sb, OKEY_ENTER)) { // ENTER
char ope[BUFFERSIZE] = "";
wchar_t content[BUFFERSIZE] = L"";
wcscpy(content, inputline);
switch (insert_edit_submode) {
case '=':
strcpy(ope, "let");
break;
case '<':
strcpy(ope, "leftstring");
break;
case '>':
strcpy(ope, "rightstring");
break;
case '\\':
strcpy(ope, "label");
break;
}
if (content[0] == L'"') {
del_wchar(content, 0);
} else if (insert_edit_submode != '=' && content[0] != L'"') {
add_wchar(content, L'\"', 0);
add_wchar(content, L'\"', wcslen(content));
}
enter_cell_content(currow, curcol, ope, content);
inputline[0] = L'\0';
inputline_pos = 0;
real_inputline_pos = 0;
chg_mode('.');
ui_clr_header(0);
char * opt = get_conf_value("newline_action");
switch (opt[0]) {
case 'j':
currow = forw_row(1)->row;
break;
case 'l':
curcol = forw_col(1)->col;
break;
}
ui_update(TRUE);
return;
} else if (sb->value == L'a') { // a
real_inputline_pos++;
inputline_pos = wcswidth(inputline, real_inputline_pos);
#ifdef INS_HISTORY_FILE
ori_insert_edit_submode = insert_edit_submode;
add(insert_history, L"");
#endif
chg_mode(insert_edit_submode);
ui_show_header();
return;
} else if (sb->value == L'A') { // A
real_inputline_pos = wcslen(inputline);
inputline_pos = wcswidth(inputline, real_inputline_pos);
#ifdef INS_HISTORY_FILE
ori_insert_edit_submode = insert_edit_submode;
add(insert_history, L"");
#endif
chg_mode(insert_edit_submode);
ui_show_header();
return;
} else if (sb->value == L'D') { // D
inputline[real_inputline_pos] = L'\0';
inputline_pos = wcswidth(inputline, real_inputline_pos);
ui_show_header();
return;
} else if (sb->value == L's') { // s
del_back_char();
#ifdef INS_HISTORY_FILE
ori_insert_edit_submode = insert_edit_submode;
add(insert_history, L"");
#endif
chg_mode(insert_edit_submode);
ui_show_header();
return;
} else if (sb->value == L'f') { // f
if (ui_getch_b(&wi) == -1) return;
pos = look_for((wchar_t) wi); // this returns real_inputline_pos !
if (pos != -1) {
real_inputline_pos = pos;
inputline_pos = wcswidth(inputline, real_inputline_pos);
ui_show_header();
}
return;
} else if (sb->value == L't') { // t
if (ui_getch_b(&wi) == -1) return;
int initial_position = inputline_pos;
if (inputline_pos < wcswidth(inputline, wcslen(inputline))) inputline_pos++ ;
pos = look_for((wchar_t) wi); // this returns real_inputline_pos !
if (pos != -1) {
real_inputline_pos = pos - 1;
inputline_pos = wcswidth(inputline, real_inputline_pos);
} else {
inputline_pos = initial_position;
}
ui_show_header();
return;
} else if (sb->value == L'F') { // F
if (ui_getch_b(&wi) == -1) return;
pos = look_back((wchar_t) wi); // this returns real_inputline_pos !
if (pos != -1) {
real_inputline_pos = pos;
inputline_pos = wcswidth(inputline, real_inputline_pos);
ui_show_header();
}
return;
} else if (sb->value == L'T') { // T
if (ui_getch_b(&wi) == -1) return;
int initial_position = inputline_pos;
if (inputline_pos) inputline_pos--;
pos = look_back((wchar_t) wi); // this returns real_inputline_pos !
if (pos != -1) {
real_inputline_pos = pos + 1;
inputline_pos = wcswidth(inputline, real_inputline_pos);
} else {
inputline_pos = initial_position;
}
ui_show_header();
return;
} else if (sb->value == L'w') { // w
real_inputline_pos = for_word(0, 0, 0);
inputline_pos = wcswidth(inputline, real_inputline_pos);
ui_show_header();
return;
} else if (sb->value == L'W') { // W
real_inputline_pos = for_word(0, 0, 1);
inputline_pos = wcswidth(inputline, real_inputline_pos);
ui_show_header();
return;
} else if (sb->value == L'e') { // e
real_inputline_pos = for_word(1, 0, 0);
inputline_pos = wcswidth(inputline, real_inputline_pos);
ui_show_header();
return;
} else if (sb->value == L'E') { // E
real_inputline_pos = for_word(1, 0, 1);
inputline_pos = wcswidth(inputline, real_inputline_pos);
ui_show_header();
return;
} else if (sb->value == L'b') { // b
real_inputline_pos = back_word(0);
inputline_pos = wcswidth(inputline, real_inputline_pos);
ui_show_header();
return;
} else if (sb->value == L'B') { // B
real_inputline_pos = back_word(1);
inputline_pos = wcswidth(inputline, real_inputline_pos);
ui_show_header();
return;
} else if (sb->value == L'R') { // R
//curs_set(1);
if (ui_getch_b(&wi) == -1) return;
wint_t c = wi;
while (c != OKEY_ENTER && c != -1) {
if (iswprint(c)) {
inputline[real_inputline_pos] = c;
++real_inputline_pos;
inputline_pos = wcswidth(inputline, real_inputline_pos);
ui_show_header();
}
if (ui_getch_b(&wi) == -1) return;
c = wi;
}
//curs_set(2);
} else if (sb->value == L'd' || sb->value == L'c') { // d or c
wint_t c, d;
if (ui_getch_b(&wi) != -1) {
c = wi;
switch (c) {
case L'$':
pos = wcswidth(inputline, wcslen(inputline)) - 1;
del_range_wchars(inputline, real_inputline_pos, pos);
if (real_inputline_pos == wcslen(inputline) && real_inputline_pos) real_inputline_pos--;
inputline_pos = wcswidth(inputline, real_inputline_pos);
break;
case L'f':
if (ui_getch_b(&wi) == -1) return;
d = wi;
pos = look_for((wchar_t) d); // this returns real_inputline_pos !
if (pos != -1) del_range_wchars(inputline, real_inputline_pos, pos);
break;
case L't':
if (ui_getch_b(&wi) == -1) return;
initial_position = inputline_pos;
if (inputline_pos < wcswidth(inputline, wcslen(inputline))) inputline_pos++ ;
pos = look_for((wchar_t) wi);
if (pos != -1) {
del_range_wchars(inputline, real_inputline_pos, pos - 1);
inputline_pos = wcswidth(inputline, real_inputline_pos);
} else {
inputline_pos = initial_position;
}
break;
case L'0': // 0
del_range_wchars(inputline, 0, real_inputline_pos-1);
real_inputline_pos = 0;
inputline_pos = wcswidth(inputline, real_inputline_pos);
break;
case L'^':
pos = first_nonblank_char();
if (pos == -1) return;
del_range_wchars(inputline, pos, real_inputline_pos-1);
real_inputline_pos = pos;
inputline_pos = wcswidth(inputline, real_inputline_pos);
break;
case L'g':
if (ui_getch_b(&wi) == -1 || wi != L'_') return;
pos = last_nonblank_char();
if (pos == -1) return;
del_range_wchars(inputline, real_inputline_pos, pos);
real_inputline_pos = pos;
inputline_pos = wcswidth(inputline, real_inputline_pos);
break;
case L'e': // de or ce
del_range_wchars(inputline, real_inputline_pos, for_word(1, 0, 0));
break;
case L'E': // dE or cE
del_range_wchars(inputline, real_inputline_pos, for_word(1, 0, 1));
break;
case L'w': // dw or cw
del_range_wchars(inputline, real_inputline_pos, for_word(0, 1, 0) - 1);
inputline_pos = wcswidth(inputline, real_inputline_pos);
if (real_inputline_pos == wcslen(inputline) && real_inputline_pos) real_inputline_pos--;
break;
case L'W': // dW or cW
del_range_wchars(inputline, real_inputline_pos, for_word(0, 1, 1) - 1);
inputline_pos = wcswidth(inputline, real_inputline_pos);
if (real_inputline_pos == wcslen(inputline) && real_inputline_pos) real_inputline_pos--;
break;
case L'b': // db or cb
d = back_word(0);
del_range_wchars(inputline, d, real_inputline_pos-1);
real_inputline_pos = d;
inputline_pos = wcswidth(inputline, real_inputline_pos);
break;
case L'B': // dB or cB
d = back_word(1);
del_range_wchars(inputline, d, real_inputline_pos-1);
real_inputline_pos = d;
inputline_pos = wcswidth(inputline, real_inputline_pos);
break;
case L'F':
if (ui_getch_b(&wi) == -1) return;
pos = look_back((wchar_t) wi);
if (pos != -1) del_range_wchars(inputline, pos, real_inputline_pos-1);
real_inputline_pos = pos;
inputline_pos = wcswidth(inputline, real_inputline_pos);
break;
case L'T':
if (ui_getch_b(&wi) == -1) return;
initial_position = inputline_pos;
if (inputline_pos) inputline_pos--;
pos = look_back((wchar_t) wi);
if (pos != -1) {
del_range_wchars(inputline, pos+1, real_inputline_pos-1);
real_inputline_pos = pos;
inputline_pos = wcswidth(inputline, real_inputline_pos);
} else {
inputline_pos = initial_position;
}
break;
case L'l': // dl or cl
case OKEY_RIGHT:
del_back_char();
break;
case L'h': // dh or ch
case OKEY_LEFT:
del_for_char();
break;
case L'a':
if (ui_getch_b(&wi) == -1) return;
d = wi;
if ( d == L'W' ) { // daW or caW
c = ( real_inputline_pos && inputline[real_inputline_pos-1] == L' ' ) ? real_inputline_pos : back_word(1);
del_range_wchars(inputline, c, for_word(0, 1, 1) - 1);
real_inputline_pos = (wcslen(inputline) > real_inputline_pos) ? c : wcslen(inputline)-2;
inputline_pos = wcswidth(inputline, real_inputline_pos);
} else if ( d == L'w' ) { // daw or caw
d = ( real_inputline_pos && ! istext( inputline[real_inputline_pos-1]) ) ? real_inputline_pos : back_word(0);
del_range_wchars(inputline, d, for_word(0, 1, 0) - 1);
real_inputline_pos = (wcslen(inputline) > real_inputline_pos) ? d : wcslen(inputline)-2;
inputline_pos = wcswidth(inputline, real_inputline_pos);
}
break;
}
if (sb->value == L'c') {
#ifdef INS_HISTORY_FILE
ori_insert_edit_submode = insert_edit_submode;
add(insert_history, L"");
#endif
chg_mode(insert_edit_submode);
}
}
}
ui_show_header();
return;
}
/**
* \brief Looks (forward) for a char in inputline
*
* \param[in] cb
*
* \return position; -1 otherwise
*/
int look_for(wchar_t cb) {
int c, cpos = inputline_pos;
while (++cpos < wcslen(inputline))
if ((c = inputline[cpos]) && c == cb) return cpos;
//if (cpos > 0 && cpos == wcslen(inputline)) return real_inputline_pos;
return -1;
}
/**
* \brief Looks (backwards) for a char in inputline
*
* \param[in] cb
*
* \return position; -1 otherwise
*/
int look_back(wchar_t cb) {
int c, cpos = inputline_pos;
while (--cpos >= 0)
if ((c = inputline[cpos]) && c == cb) return cpos;
return -1;
}
/**
* \brief Looks for a first non blank char in inputline
*
* \return position if found; -1 otherwise
*/
int first_nonblank_char() {
int cpos = -1;
while (++cpos < wcslen(inputline))
if (inputline[cpos] && inputline[cpos] != L' ') return cpos;
return -1;
}
/**
* \brief Looks for the last non blank char in inputline
*
* \return position if found; -1 otherwise
*/
int last_nonblank_char() {
int cpos = wcslen(inputline);
while (--cpos > 0)
if (inputline[cpos] && inputline[cpos] != L' ') return cpos;
return -1;
}
/**
* \brief Move backward one word
*
* \param[in] big_word
*
* \return position
*/
int back_word(int big_word) {
int c, cpos = real_inputline_pos;
if (inputline[cpos-1] == L' ' ) cpos--;
while (cpos)
if ((c = inputline[--cpos]) && c == L' ' ) return cpos+1;
else if ( istext( inputline [cpos] ) && ! istext( inputline[cpos - 1] ) && ! big_word ) return cpos;
else if ( ! istext( inputline [cpos] ) && istext( inputline[cpos - 1] ) && ! big_word ) return cpos;
return cpos;
}
/**
* \brief Move to the end of a word
*
* \details Used for moving forward to the end of a WORD. big_word
* looks for ' ', else looks for istext.
*
* \param[in] end_of_word
* \param[in] delete
* \param[in] big_word
*
* \return position; 0 otherwise
*/
int for_word(int end_of_word, int delete, int big_word) {
int cpos = real_inputline_pos;
if (! end_of_word) { // w or W
while ( ++cpos < wcslen(inputline) )
if ( ! istext( inputline[cpos - 1]) && inputline[cpos] != L' ' && ! big_word ) return cpos;
else if ( inputline[cpos] == L' ' ) return ++cpos;
else if ( ! istext( inputline [cpos] ) && istext( inputline[cpos - 1] ) && ! big_word ) return cpos;
} else { // e or E
if ( inputline[cpos+1] == L' ' ) cpos += 2;
else if ( ! istext( inputline [cpos+1] ) && istext( inputline[cpos] ) && ! big_word ) cpos++;
while ( ++cpos < wcslen(inputline) )
if ( ( inputline[cpos] == L' ' ) || ( ! istext( inputline [cpos] )
&& istext( inputline[cpos - 1] ) && ! big_word ) ) return --cpos;
}
if (cpos > 0 && cpos >= wcslen(inputline)) return wcslen(inputline) - 1 + delete;
return 0;
}
/**
* \brief TODO Document del_back_char()
*
* \return none
*/
void del_back_char() { // x DEL
int max = wcswidth(inputline, wcslen(inputline));
if (inputline_pos > max) return;
int l = wcwidth(inputline[real_inputline_pos]);
del_wchar(inputline, real_inputline_pos);
if (real_inputline_pos == wcslen(inputline) && wcslen(inputline)) {
inputline_pos -= l;
real_inputline_pos--;
} else if (! wcslen(inputline)) {
inputline_pos = 0;
}
return;
}
/**
* \brief TODO Document del_for_char()
*
* \return none
*/
void del_for_char() { // X BS
if ( ! wcslen(inputline) || ! real_inputline_pos ) return;
int l = wcwidth(inputline[real_inputline_pos - 1]);
del_wchar(inputline, real_inputline_pos-1);
real_inputline_pos--;
inputline_pos -= l;
return;
}
/**
* \brief TODO Document start_edit_mode()
*
* \returns: 1 on success; 0 on error
*/
int start_edit_mode(struct block * buf, char type) {
chg_mode(buf->value);
line[0]='\0';
inputline[0]=L'\0';
struct ent * p1 = lookat(currow, curcol);
if (type == 'v') { // && p1->flags & is_valid) { // numeric value
if (( ! (p1->expr) ) ) { // || (p1->flags & is_strexpr)) {
(void) swprintf(inputline, BUFFERSIZE, L"%.15g", p1->v);
} else { // expression
linelim = 0;
editexp(currow, curcol);
linelim = -1;
(void) swprintf(inputline, BUFFERSIZE, L"%s", line);
}
insert_edit_submode='=';
} else if (type == 's') { // string value
if (! ((p1)->label || (p1)->flags & is_strexpr)) {
return 0;
}
if (p1->flags & is_label) {
insert_edit_submode='\\';
} else if (p1->flags & is_leftflush) {
insert_edit_submode='<';
} else {
insert_edit_submode='>';
}
linelim = 0;
edits(currow, curcol, 0);
linelim = -1;
if ((p1)->flags & is_strexpr) swprintf(inputline + wcslen(inputline), BUFFERSIZE, L"\"");
(void) swprintf(inputline + wcslen(inputline), BUFFERSIZE, L"%s", line);
}
inputline_pos = wcswidth(inputline, wcslen(inputline)) - 1;
real_inputline_pos = wcslen(inputline) - 1;
ui_show_header();
return 1;
}