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file.c
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file.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 file.c
* \author Andrés Martinelli <[email protected]>
* \date 2017-07-18
* \brief TODO Write a brief file description.
*/
#include <pwd.h>
#include <sys/stat.h>
#include <time.h>
#include <utime.h>
#include <fcntl.h>
#include <signal.h>
#include <errno.h>
#include <stdlib.h>
#include <unistd.h>
#include <wchar.h>
#include <sys/wait.h>
#ifndef NO_WORDEXP
#include <wordexp.h>
#endif
#include "conf.h"
#include "maps.h"
#include "yank.h"
#include "cmds.h"
#include "file.h"
#include "marks.h"
#include "lex.h"
#include "format.h"
#include "interp.h"
#include "utils/string.h"
#include "utils/dictionary.h"
#include "cmds_edit.h"
#include "xmalloc.h"
#include "y.tab.h"
#include "xlsx.h"
#include "xls.h"
#include "tui.h"
extern struct ent * freeents;
extern int yyparse(void);
#ifdef HAVE_PTHREAD
#include <pthread.h>
extern pthread_t fthread;
extern int pthread_exists;
#endif
/**
* \brief Erase the database (tbl, etc.)
*
* \return none
*/
void erasedb() {
int r, c;
for (c = 0; c <= maxcol; c++) {
fwidth[c] = DEFWIDTH;
precision[c] = DEFPREC;
realfmt[c] = DEFREFMT;
}
for (r = 0; r <= maxrow; r++) {
register struct ent ** pp = ATBL(tbl, r, 0);
for (c = 0; c++ <= maxcol; pp++)
if (*pp != NULL) {
//(*pp)->next = freeents; /* save [struct ent] for reuse */
//freeents = *pp;
clearent(*pp);
}
}
for (c = 0; c < COLFORMATS; c++) {
if (colformat[c] != NULL)
scxfree(colformat[c]);
colformat[c] = NULL;
}
maxrow = 0;
maxcol = 0;
clean_range();
calc_order = BYROWS;
prescale = 1.0;
tbl_style = 0;
optimize = 0;
currow = curcol = 0;
*curfile = '\0';
}
void loadrc(void) {
char rcpath[PATHLEN];
char * home;
if ((home = getenv("XDG_CONFIG_HOME"))) {
char config_dir[PATHLEN-(sizeof CONFIG_FILE)];
snprintf(config_dir, PATHLEN-(sizeof CONFIG_FILE), "%s/sc-im", home);
mkdir(config_dir,0777);
snprintf(rcpath, PATHLEN, "%s/%s", config_dir, CONFIG_FILE);
(void) readfile(rcpath, 0);
}
/* Default to compile time if XDG_CONFIG_HOME not found */
else if ((home = getenv("HOME"))) {
char config_dir[PATHLEN];
sprintf(config_dir, "%s/%s", home,CONFIG_DIR);
mkdir(config_dir,0777);
snprintf(rcpath, PATHLEN, "%s/%s/%s", home,CONFIG_DIR,CONFIG_FILE);
(void) readfile(rcpath, 0);
}
*curfile = '\0';
}
/**
* \brief Check if a file exists
*
* \details Check if a file exists. Returns 1 if so. Returns 0 otherwise.
*
* \param[in] fname file name
*
* \return 1 if file exises; 0 otherwise
*/
int file_exists(const char * fname) {
FILE * file;
if ((file = fopen(fname, "r"))) {
fclose(file);
return 1;
}
return 0;
}
/**
* \brief Check if file has been modified since last save.
*
* \details This function checks if a file suffered mods since it was open.
*
* \return 0 if not modified; 1 if modified
*/
int modcheck() {
if (modflg && ! get_conf_int("nocurses")) {
sc_error("File not saved since last change. Add '!' to force");
return(1);
}
return 0;
}
/**
* \brief Return the proper delimiter for delimiter separated files.
*
* \details This function checks the type of a file as well as txtdelim conf value
*
* \return one of , ; \t |
*/
char get_delim(char *type) {
char delim = ',';
if (!strcasecmp(type, "tsv") || !strcasecmp(type, "tab"))
delim = '\t';
if (get_conf_value("txtdelim") != NULL) {
if (!strcasecmp(get_conf_value("txtdelim"), "\\t")) {
delim = '\t';
} else if (!strcasecmp(get_conf_value("txtdelim"), ",")) {
delim = ',';
} else if (!strcasecmp(get_conf_value("txtdelim"), ";")) {
delim = ';';
} else if (!strcasecmp(get_conf_value("txtdelim"), "|")) {
delim = '|';
}
}
return delim;
}
/**
* \brief TODO Handle the save file process
*
* This funciton handles the save file process in SC-IM format..
*
* \return 0 on OK; -1 on error
*/
int savefile() {
int force_rewrite = 0;
char name[BUFFERSIZE];
#ifndef NO_WORDEXP
size_t len;
wordexp_t p;
#endif
if (! curfile[0] && wcslen(inputline) < 3) { // casos ":w" ":w!" ":x" ":x!"
sc_error("There is no filename");
return -1;
}
if (inputline[1] == L'!') force_rewrite = 1;
wcstombs(name, inputline, BUFFERSIZE);
del_range_chars(name, 0, 1 + force_rewrite);
#ifndef NO_WORDEXP
wordexp(name, &p, 0);
if (p.we_wordc < 1) {
sc_error("Failed expanding filepath");
return -1;
}
if ((len = strlen(p.we_wordv[0])) >= sizeof(name)) {
sc_error("File path too long");
wordfree(&p);
return -1;
}
memcpy(name, p.we_wordv[0], len+1);
wordfree(&p);
#endif
if (! force_rewrite && file_exists(name)) {
sc_error("File already exists. Use \"!\" to force rewrite.");
return -1;
}
#ifdef AUTOBACKUP
// check if backup of curfile exists.
// if it exists, remove it.
if (strlen(curfile) && backup_exists(curfile)) remove_backup(curfile);
// check if backup of newfilename exists.
// if it exists and '!' is set, remove it.
// if it exists and no '!' is set, return.
if (!strlen(curfile) && backup_exists(name)) {
if (!force_rewrite) {
sc_error("Backup file of %s exists. Use \"!\" to force the write process.", name);
return -1;
} else remove_backup(name);
}
#endif
// copy newfilename to curfile
if (wcslen(inputline) > 2) {
strcpy(curfile, name);
}
// add sc extension if not present
if (wcslen(inputline) > 2 && str_in_str(curfile, ".") == -1) {
sprintf(curfile + strlen(curfile), ".sc");
// treat csv
} else if (strlen(curfile) > 4 && (! strcasecmp( & curfile[strlen(curfile)-4], ".csv"))) {
export_delim(curfile, get_delim("csv"), 0, 0, maxrow, maxcol, 1);
modflg = 0;
return 0;
// treat tab
} else if (strlen(curfile) > 4 && (! strcasecmp( & curfile[strlen(curfile)-4], ".tsv") ||
! strcasecmp( & curfile[strlen(curfile)-4], ".tab"))){
export_delim(curfile, '\t', 0, 0, maxrow, maxcol, 1);
modflg = 0;
return 0;
}
// save in sc format
if (writefile(curfile, 0, 0, maxrow, maxcol, 1) < 0) {
sc_error("File could not be saved");
return -1;
}
return 0;
}
/**
* \brief Write a file
*
* \details Write a file. Receives parameter range and file name.
*
* \param[in] fname file name
* \param[in] r0
* \param[in] c0
* \param[in] rn
* \param[in] cn
* \param[in] verbose
*
* \return 0 on success; -1 on error
*/
int writefile(char * fname, int r0, int c0, int rn, int cn, int verbose) {
register FILE *f;
char save[PATHLEN];
char tfname[PATHLEN];
int pid;
(void) strcpy(tfname, fname);
(void) strcpy(save, tfname);
if ((f = openfile(tfname, &pid, NULL)) == NULL) {
if (verbose) sc_error("Can't create file \"%s\"", save);
return -1;
}
if (verbose) sc_info("Writing file \"%s\"...", save);
write_fd(f, r0, c0, rn, cn);
closefile(f, pid, 0);
if (! pid) {
(void) strcpy(curfile, save);
modflg = 0;
if (verbose) sc_info("File \"%s\" written", curfile);
}
return 0;
}
/**
* \brief TODO Document write_fd
*
* \param[in] f file pointer
* \param[in] r0
* \param[in] c0
* \param[in] rn
* \param[in] cn
*
* \return none
*/
void write_fd(register FILE *f, int r0, int c0, int rn, int cn) {
register struct ent **pp;
int r, c;
(void) fprintf(f, "# This data file was generated by the Spreadsheet Calculator Improvised (SC-IM)\n");
(void) fprintf(f, "# You almost certainly shouldn't edit it.\n\n");
print_options(f);
for (c = 0; c < COLFORMATS; c++)
if (colformat[c])
(void) fprintf (f, "format %d = \"%s\"\n", c, colformat[c]);
for (c = c0; c <= cn; c++)
if (fwidth[c] != DEFWIDTH || precision[c] != DEFPREC || realfmt[c] != DEFREFMT)
(void) fprintf (f, "format %s %d %d %d\n", coltoa(c), fwidth[c], precision[c], realfmt[c]);
// new implementation of hidecol. group by ranges
for (c = c0; c <= cn; c++) {
int c_aux = c;
if ( col_hidden[c] && c <= maxcol && ( c == 0 || !col_hidden[c-1] )) {
while (c_aux <= maxcol && col_hidden[c_aux])
c_aux++;
fprintf(f, "hidecol %s", coltoa(c));
if (c_aux-1 != c) {
fprintf(f, ":%s\n", coltoa(c_aux-1));
c = c_aux-1;
} else
fprintf(f, "\n");
}
}
// new implementation of hiderow. group by ranges
for (r = r0; r <= rn; r++) {
int r_aux = r;
if ( row_hidden[r] && r <= maxrow && ( r == 0 || !row_hidden[r-1] )) {
while (r_aux <= maxrow && row_hidden[r_aux])
r_aux++;
fprintf(f, "hiderow %d", r);
if (r_aux-1 != r) {
fprintf(f, ":%d\n", r_aux-1);
r = r_aux-1;
} else
fprintf(f, "\n");
}
}
write_marks(f);
write_franges(f);
write_cells(f, r0, c0, rn, cn, r0, c0);
struct custom_color * cc;
for (r = r0; r <= rn; r++) {
pp = ATBL(tbl, r, c0);
for (c = c0; c <= cn; c++, pp++)
if (*pp) {
// Write ucolors
if ((*pp)->ucolor != NULL) {
char strcolorbuf[BUFFERSIZE];
char * strcolor = strcolorbuf;
strcolor[0] = 0;
strcolor[1] = 0;
// decompile int value of color to its string description
if ((*pp)->ucolor->fg != NONE_COLOR) {
if ((*pp)->ucolor->fg <= 8) {
linelim=0;
struct enode * e = new((*pp)->ucolor->fg, (struct enode *)0, (struct enode *)0);
decompile(e, 0);
uppercase(line);
del_char(line, 0);
sprintf(strcolor, " fg=%.*s", BUFFERSIZE-5, &line[0]);
free(e);
} else if ((cc = get_custom_color_by_number((*pp)->ucolor->fg - 7)) != NULL) {
sprintf(strcolor, " fg=%.*s", BUFFERSIZE, cc->name);
}
}
if ((*pp)->ucolor->bg != NONE_COLOR) {
if ((*pp)->ucolor->bg <= WHITE) {
linelim=0;
struct enode * e = new((*pp)->ucolor->bg, (struct enode *)0, (struct enode *)0);
decompile(e, 0);
uppercase(line);
del_char(line, 0);
sprintf(strcolor + strlen(strcolor), " bg=%s", &line[0]);
free(e);
} else if ((cc = get_custom_color_by_number((*pp)->ucolor->bg - 7)) != NULL) {
sprintf(strcolor + strlen(strcolor), " bg=%.*s", BUFFERSIZE, cc->name);
}
}
if ((*pp)->ucolor->bold) sprintf(strcolor + strlen(strcolor), " bold=1");
if ((*pp)->ucolor->italic) sprintf(strcolor + strlen(strcolor), " italic=1");
if ((*pp)->ucolor->dim) sprintf(strcolor + strlen(strcolor), " dim=1");
if ((*pp)->ucolor->reverse) sprintf(strcolor + strlen(strcolor), " reverse=1");
if ((*pp)->ucolor->standout) sprintf(strcolor + strlen(strcolor), " standout=1");
if ((*pp)->ucolor->underline) sprintf(strcolor + strlen(strcolor), " underline=1");
if ((*pp)->ucolor->blink) sprintf(strcolor + strlen(strcolor), " blink=1");
// Remove the leading space
strcolor++;
// previous implementation
//(void) fprintf(f, "cellcolor %s%d \"%s\"\n", coltoa((*pp)->col), (*pp)->row, strcolor);
// new implementation
// by row, store cellcolors grouped by ranges
int c_aux = c;
struct ucolor * u = (*pp)->ucolor;
struct ucolor * a = NULL;
if ( c > 0 && *ATBL(tbl, r, c-1) != NULL)
a = (*ATBL(tbl, r, c-1))->ucolor;
if ( *strcolor != '\0' && (u != NULL) && (c <= maxcol) && ( c == 0 || ( a == NULL ) || ( a != NULL && ! same_ucolor( a, u ) ))) {
while (c_aux <= maxcol && *ATBL(tbl, r, c_aux) != NULL && same_ucolor( (*ATBL(tbl, r, c_aux))->ucolor, (*pp)->ucolor ))
c_aux++;
fprintf(f, "cellcolor %s%d", coltoa((*pp)->col), (*pp)->row);
if (c_aux-1 != (*pp)->col)
fprintf(f, ":%s%d \"%s\"\n", coltoa(c_aux-1), (*pp)->row, strcolor);
else
fprintf(f, " \"%s\"\n", strcolor);
}
}
/* if ((*pp)->nrow >= 0) {
(void) fprintf(f, "addnote %s ", v_name((*pp)->row, (*pp)->col));
(void) fprintf(f, "%s\n", r_name((*pp)->nrow, (*pp)->ncol, (*pp)->nlastrow, (*pp)->nlastcol));
} */
// padding
// previous implementation
//if ((*pp)->pad)
// (void) fprintf(f, "pad %d %s%d\n", (*pp)->pad, coltoa((*pp)->col), (*pp)->row);
// new implementation
int r_aux = r;
if ( (*pp)->pad && r <= maxrow && ( r == 0 || (*ATBL(tbl, r-1, c) == NULL) ||
(*ATBL(tbl, r-1, c) != NULL && ((*ATBL(tbl, r-1, c))->pad != (*pp)->pad)) )) {
while (r_aux <= maxrow && *ATBL(tbl, r_aux, c) != NULL && (*pp)->pad == (*ATBL(tbl, r_aux, c))->pad )
r_aux++;
fprintf(f, "pad %d %s%d", (*pp)->pad, coltoa((*pp)->col), (*pp)->row);
if (r_aux-1 != (*pp)->row)
fprintf(f, ":%s%d\n", coltoa((*pp)->col), r_aux-1);
else
fprintf(f, "\n");
}
}
}
// write locked cells
// lock should be stored after any other command
for (r = r0; r <= rn; r++) {
pp = ATBL(tbl, r, c0);
for (c = c0; c <= cn; c++, pp++)
if (*pp) {
// previous implementation
//if ((*pp)->flags & is_locked)
// (void) fprintf(f, "lock %s%d\n", coltoa((*pp)->col), (*pp)->row);
// new implementation
int c_aux = c;
if ( (*pp)->flags & is_locked && c <= maxcol && ( c == 0 || ( *ATBL(tbl, r, c-1) != NULL && ! ((*ATBL(tbl, r, c-1))->flags & is_locked) ) )) {
while (c_aux <= maxcol && *ATBL(tbl, r, c_aux) != NULL && (*ATBL(tbl, r, c_aux))->flags & is_locked )
c_aux++;
fprintf(f, "lock %s%d", coltoa((*pp)->col), (*pp)->row);
if (c_aux-1 != (*pp)->col)
fprintf(f, ":%s%d\n", coltoa(c_aux-1), (*pp)->row);
else
fprintf(f, "\n");
}
}
}
/*
* Don't try to combine these into a single fprintf(). v_name() has
* a single buffer that is overwritten on each call, so the first part
* needs to be written to the file before making the second call.
*/
fprintf(f, "goto %s", v_name(currow, curcol));
//fprintf(f, " %s\n", v_name(strow, stcol));
fprintf(f, "\n");
}
/**
* \brief TODO Document write_franges()
*
* \param[in] f file pointer
*
* \return none
*/
void write_franges(register FILE *f) {
if (! freeze_ranges) return;
if (freeze_ranges->type == 'a') {
fprintf(f, "freeze %s%d", coltoa(freeze_ranges->tl->col), freeze_ranges->tl->row);
fprintf(f, ":%s%d\n", coltoa(freeze_ranges->br->col), freeze_ranges->br->row);
} else if (freeze_ranges->type == 'c' && freeze_ranges->tl->col == freeze_ranges->br->col) {
fprintf(f, "freeze %s\n", coltoa(freeze_ranges->tl->col));
} else if (freeze_ranges->type == 'c') {
fprintf(f, "freeze %s:", coltoa(freeze_ranges->tl->col));
fprintf(f, "%s\n", coltoa(freeze_ranges->br->col));
} else if (freeze_ranges->type == 'r' && freeze_ranges->tl->row == freeze_ranges->br->row) {
fprintf(f, "freeze %d\n", freeze_ranges->tl->row);
} else if (freeze_ranges->type == 'r') {
fprintf(f, "freeze %d:%d\n", freeze_ranges->tl->row, freeze_ranges->br->row);
}
}
/**
* \brief TODO Document write_marks()
*
* \param[in] f file pointer
*
* \return none
*/
void write_marks(register FILE *f) {
int i;
struct mark * m;
for ( i='a'; i<='z'; i++ ) {
m = get_mark((char) i);
// m->rng should never be NULL if both m->col and m->row are -1 !!
if ( m->row == -1 && m->col == -1) { // && m->rng != NULL ) {
fprintf(f, "mark %c %s%d ", i, coltoa(m->rng->tlcol), m->rng->tlrow);
fprintf(f, "%s%d\n", coltoa(m->rng->brcol), m->rng->brrow);
} else if ( m->row != 0 && m->row != 0) { // && m->rng == NULL) {
fprintf(f, "mark %c %s%d\n", i, coltoa(m->col), m->row);
}
}
return;
}
/**
* \brief TODO Document write_cells()
*
* \param[in] f file pointer
* \param[in] r0
* \param[in] c0
* \param[in] rn
* \param[in] cn
* \param[in] dr
* \param[in[ dc
*
* \return none
*/
void write_cells(register FILE *f, int r0, int c0, int rn, int cn, int dr, int dc) {
register struct ent **pp;
int r, c;
//int r, c, mf;
char *dpointptr;
//mf = modflg;
if (dr != r0 || dc != c0) {
//yank_area(r0, c0, rn, cn);
rn += dr - r0;
cn += dc - c0;
//rs = currow;
//cs = curcol;
currow = dr;
curcol = dc;
}
//if (Vopt) valueize_area(dr, dc, rn, cn);
for (r = dr; r <= rn; r++) {
pp = ATBL(tbl, r, dc);
for (c = dc; c <= cn; c++, pp++)
if (*pp) {
if ((*pp)->label || (*pp)->flags & is_strexpr) {
edits(r, c, 1);
(void) fprintf(f, "%s\n", line);
}
if ((*pp)->flags & is_valid || (*pp)->expr) {
editv(r, c);
dpointptr = strchr(line, dpoint);
if (dpointptr != NULL)
*dpointptr = '.';
(void) fprintf(f, "%s\n", line);
}
if ((*pp)->format) {
editfmt(r, c);
(void) fprintf(f, "%s\n",line);
}
}
}
//modflg = mf;
}
/**
* \brief Try to open a spreadsheet file.
*
* \param[in] fname file name
* \param[in] eraseflg
*
* \return SC_READFILE_SUCCESS if we loaded the file, SC_READFILE_ERROR if we failed,
* SC_READFILE_DOESNTEXIST if the file doesn't exist.
*/
sc_readfile_result readfile(char * fname, int eraseflg) {
if (!strlen(fname)) return 0;
loading = 1;
#ifdef AUTOBACKUP
// Check if curfile is set and backup exists..
if (str_in_str(fname, CONFIG_FILE) == -1 && strlen(curfile) &&
backup_exists(curfile) && strcmp(fname, curfile)) {
if (modflg) {
// TODO - force load with '!' ??
sc_error("There are changes unsaved. Cannot load file: %s", fname);
loading = 0;
return SC_READFILE_ERROR;
}
remove_backup(curfile);
}
// Check if fname is set and backup exists..
if (backup_exists(fname)) {
wchar_t msg[BUFFERSIZE];
swprintf(msg, BUFFERSIZE,
// TODO - Open backup readonly ??
L"Backup of %s file exists. Do you want to (E)dit the file and remove the backup, (R)ecover the backup or (Q)uit: ", fname);
wchar_t t = ui_query_opt(msg, L"qerQER");
switch (t) {
case L'q':
case L'Q':
loading = 0;
extern int shall_quit;
shall_quit = 1;
return SC_READFILE_ERROR;
break;
case L'e':
case L'E':
remove_backup(fname);
break;
case L'r':
case L'R':
;
int len = strlen(fname);
if (!len) return 0;
char * pstr = strrchr(fname, '/');
int pos = pstr == NULL ? -1 : pstr - fname;
char bkpname[len+6];
strcpy(bkpname, fname);
add_char(bkpname, '.', pos+1);
sprintf(bkpname + strlen(bkpname), ".bak");
remove(fname);
rename(bkpname, fname);
break;
}
}
#endif
// Check if file is a correct format
int len = strlen(fname);
if (! strcmp( & fname[len-3], ".sc") ||
(len >= strlen(CONFIG_FILE) && ! strcasecmp( & fname[len-strlen(CONFIG_FILE)], CONFIG_FILE))) {
// pass
// If file is an xlsx file, we import it
} else if (len > 5 && ! strcasecmp( & fname[len-5], ".xlsx")){
#ifndef XLSX
sc_error("XLSX import support not compiled in");
#else
open_xlsx(fname, "UTF-8");
strcpy(curfile, fname);
modflg = 0;
#endif
loading = 0;
return SC_READFILE_SUCCESS;
// If file is an xls file, we import it
} else if (len > 4 && ! strcasecmp( & fname[len-4], ".xls")){
#ifndef XLS
sc_error("XLS import support not compiled in");
#else
open_xls(fname, "UTF-8");
modflg = 0;
strcpy(curfile, fname);
#endif
loading = 0;
return SC_READFILE_SUCCESS;
// If file is an delimited text file, we import it
} else if (len > 4 && ( ! strcasecmp( & fname[len-4], ".csv") ||
! strcasecmp( & fname[len-4], ".tsv") || ! strcasecmp( & fname[len-4], ".tab") ||
! strcasecmp( & fname[len-4], ".txt") )){
import_csv(fname, get_delim(&fname[len-3])); // csv tsv tab txt delim import
strcpy(curfile, fname);
modflg = 0;
loading = 0;
return SC_READFILE_SUCCESS;
} else {
sc_info("\"%s\" is not a SC-IM compatible file", fname);
loading = 0;
return SC_READFILE_ERROR;
}
// We open an 'sc' format file
// open fname for reading
register FILE * f;
char save[PATHLEN];
if (*fname == '\0') fname = curfile;
(void) strcpy(save, fname);
f = fopen(save, "r");
if (f == NULL) {
loading = 0;
strcpy(curfile, save);
return SC_READFILE_DOESNTEXIST;
} /* */
if (eraseflg) erasedb();
while (! brokenpipe && fgets(line, sizeof(line), f)) {
linelim = 0;
if (line[0] != '#') (void) yyparse();
}
fclose(f);
loading = 0;
linelim = -1;
//EvalAll(); // FIXME: see why this double EvalAll is neccesary to remedy #193
if (eraseflg) {
//(void) strcpy(curfile, save);
cellassign = 0;
}
strcpy(curfile, save);
EvalAll();
modflg = 0;
return SC_READFILE_SUCCESS;
}
/**
* \brief Expand a ~ in path to the user's home directory
*
* \param[in] path
*
* \return path
*/
char * findhome(char * path) {
static char * HomeDir = NULL;
if (* path == '~') {
char * pathptr;
char tmppath[PATHLEN];
if (HomeDir == NULL) {
HomeDir = getenv("HOME");
if (HomeDir == NULL)
HomeDir = "/";
}
pathptr = path + 1;
if ((* pathptr == '/') || (* pathptr == '\0'))
strcpy(tmppath, HomeDir);
else {
struct passwd * pwent;
char * namep;
char name[50];
namep = name;
while ((*pathptr != '\0') && (*pathptr != '/'))
*(namep++) = *(pathptr++);
*namep = '\0';
if ((pwent = getpwnam(name)) == NULL) {
(void) sprintf(path, "Can't find user %s", name);
return (NULL);
}
strcpy(tmppath, pwent->pw_dir);
}
strcat(tmppath, pathptr);
strcpy(path, tmppath);
}
return (path);
}
/**
* \brief Open the input or output file
*
* \details Open the input or output file, setting up a pipe if needed.
*
* \param[in] fname file name
* \param[in] rpid
* \param[in] rfd
*
* \return file pointer
*/
FILE * openfile(char *fname, int *rpid, int *rfd) {
int pipefd[4];
int pid;
FILE *f;
char *efname;
while (*fname && (*fname == ' ')) // Skip leading blanks
fname++;
if (*fname != '|') { // Open file if not pipe
*rpid = 0;
if (rfd != NULL)
*rfd = 1; // Set to stdout just in case
efname = findhome(fname);
return (fopen(efname, rfd == NULL ? "w" : "r"));
}
fname++; // Skip |
efname = findhome(fname);
if (pipe(pipefd) < 0 || (rfd != NULL && pipe(pipefd+2) < 0)) {
sc_error("Can't make pipe to child");
*rpid = 0;
return (0);
}
//deraw(rfd==NULL);
if ((pid=fork()) == 0) { // if child
(void) close(0); // close stdin
(void) close(pipefd[1]);
(void) dup(pipefd[0]); // connect to first pipe
if (rfd != NULL) { // if opening for read
(void) close(1); // close stdout
(void) close(pipefd[2]);
(void) dup(pipefd[3]); // connect to second pipe
}
(void) signal(SIGINT, SIG_DFL); // reset
execl("/bin/sh", "sh", "-c", efname, 0, (char *) NULL);
exit (-127);
} else { // else parent
*rpid = pid;
if ((f = fdopen(pipefd[(rfd==NULL?1:2)], rfd==NULL?"w":"r")) == NULL) {
(void) kill(pid, 9);
sc_error("Can't fdopen %sput", rfd==NULL?"out":"in");
(void) close(pipefd[1]);
if (rfd != NULL)
(void) close(pipefd[3]);
*rpid = 0;
return (0);
}
}
(void) close(pipefd[0]);
if (rfd != NULL) {
(void) close(pipefd[3]);
*rfd = pipefd[1];
}
return (f);
}
// close a file opened by openfile(), if process wait for return
/**
* \brief Close a file opened by openfile()
*
* \details Close a file opened by openfile(). If process, wait for return
*
* \param[in] f file pointer
* \param[in] pid
* \param[in] rfd
*
* \return none
*/
void closefile(FILE *f, int pid, int rfd) {
int temp;
wint_t wi;
(void) fclose(f);
if (pid) {
while (pid != wait(&temp)) //;
if (rfd==0) {
printf("Press any key to continue ");
fflush(stdout);
#ifdef NCURSES
cbreak();
#endif
ui_getch_b(&wi);
} else {
close(rfd);
#ifdef NCURSES
if (! get_conf_int("nocurses")) {
cbreak();
nonl();
noecho ();
}
#endif
}
}
if (brokenpipe) {
sc_error("Broken pipe");
brokenpipe = FALSE;
}
}
/**
* \brief TODO <brief function description>
*
* \param[in] f file pointer
*
* \return none
*/
void print_options(FILE *f) {
if (
! optimize &&
! rndtoeven &&
calc_order == BYROWS &&
prescale == 1.0 &&
! get_conf_int("external_functions") &&
tbl_style == 0
)
return; // No reason to do this
(void) fprintf(f, "set");
if (optimize) (void) fprintf(f," optimize");
if (rndtoeven) (void) fprintf(f, " rndtoeven");
if (calc_order != BYROWS ) (void) fprintf(f, " bycols");
if (prescale != 1.0) (void) fprintf(f, " prescale");
if ( get_conf_int("external_functions") ) (void) fprintf(f, " external_functions");
if (tbl_style) (void) fprintf(f, " tblstyle = %s", tbl_style == TBL ? "tbl" : tbl_style == LATEX ? "latex" : tbl_style == SLATEX ? "slatex" : tbl_style == TEX ? "tex" : tbl_style == FRAME ? "frame" : "0" );
(void) fprintf(f, "\n");
}
/**
* \brief Import csv to sc
*
* \param[in] fname file name
* \param[in] d = delim character
*
* \return 0 on success; -1 on error