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Differential D57996 Diff 181347 contrib/ee/ee.c

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contrib/ee/ee.c

Show First 20 Lines • Show All 188 Lines • ▼ Show 20 Lines
unsigned char *point; /* points to current position in line */ unsigned char *point; /* points to current position in line */
unsigned char *srch_str; /* pointer for search string */ unsigned char *srch_str; /* pointer for search string */
unsigned char *u_srch_str; /* pointer to non-case sensitive search */ unsigned char *u_srch_str; /* pointer to non-case sensitive search */
unsigned char *srch_1; /* pointer to start of suspect string */ unsigned char *srch_1; /* pointer to start of suspect string */
unsigned char *srch_2; /* pointer to next character of string */ unsigned char *srch_2; /* pointer to next character of string */
unsigned char *srch_3; unsigned char *srch_3;
unsigned char *in_file_name = NULL; /* name of input file */ unsigned char *in_file_name = NULL; /* name of input file */
char *tmp_file; /* temporary file name */ char *tmp_file; /* temporary file name */
unsigned char *d_char; /* deleted character */ unsigned char d_char[5]; /* deleted character */
unsigned char *d_word; /* deleted word */ unsigned char *d_word; /* deleted word */
unsigned char *d_line; /* deleted line */ unsigned char *d_line; /* deleted line */
char in_string[513]; /* buffer for reading a file */ char in_string[513]; /* buffer for reading a file */
unsigned char *print_command = (unsigned char *)"lpr"; /* string to use for the print command */ unsigned char *print_command = (unsigned char *)"lpr"; /* string to use for the print command */
unsigned char *start_at_line = NULL; /* move to this line at start of session*/ unsigned char *start_at_line = NULL; /* move to this line at start of session*/
int in; /* input character */ int in; /* input character */
FILE *temp_fp; /* temporary file pointer */ FILE *temp_fp; /* temporary file pointer */
▲ Show 20 Lines • Show All 387 Lines • ▼ Show 20 Lines if (!isatty(STDIN_FILENO) || !isatty(STDOUT_FILENO)) {
fprintf(stderr, fprintf(stderr,
"ee's standard input and output must be a terminal\n"); "ee's standard input and output must be a terminal\n");
exit(1); exit(1);
} }
signal(SIGCHLD, SIG_DFL); signal(SIGCHLD, SIG_DFL);
signal(SIGSEGV, SIG_DFL); signal(SIGSEGV, SIG_DFL);
signal(SIGINT, edit_abort); signal(SIGINT, edit_abort);
d_char = malloc(5); /* UTF-8 chars can be up to 4 bytes + NUL */
d_word = malloc(150); d_word = malloc(150);
*d_word = '\0'; *d_word = '\0';
d_line = NULL; d_line = NULL;
dlt_line = txtalloc(); dlt_line = txtalloc();
dlt_line->line = d_line; dlt_line->line = d_line;
dlt_line->line_length = 0; dlt_line->line_length = 0;
curr_line = first_line = txtalloc(); curr_line = first_line = txtalloc();
curr_line->line = point = malloc(10); curr_line->line = point = malloc(10);
▲ Show 20 Lines • Show All 217 Lines • ▼ Show 20 Lines
} }
/* insert a complete multi-byte UTF-8 character into line */ /* insert a complete multi-byte UTF-8 character into line */
void void
insert_utf8(const unsigned char *mb, int len) insert_utf8(const unsigned char *mb, int len)
{ {
int counter; int counter;
unsigned char *temp; unsigned char *temp;
unsigned char *temp2;
int i; int i;
text_changes = TRUE; text_changes = TRUE;
if ((curr_line->max_length - curr_line->line_length) < (len + 5)) if ((curr_line->max_length - curr_line->line_length) < (len + 5))
point = resiz_line(len + 10, curr_line, position); point = resiz_line(len + 10, curr_line, position);
/* shift the tail of the line right by len bytes */ /* shift the tail of the line right by len bytes */
curr_line->line_length += len; curr_line->line_length += len;
temp = point; temp = point;
counter = position; counter = position;
while (counter < curr_line->line_length) while (counter < curr_line->line_length)
{ {
counter++; counter++;
temp++; temp++;
} }
temp++; temp += len;
while (point < temp) while (point + len - 1 < temp)
{ {
unsigned char *temp2;
temp2 = temp - len; temp2 = temp - len;
*temp = *temp2; *temp = *temp2;
temp--; temp--;
} }
/* copy all bytes of the UTF-8 character */ /* copy all bytes of the UTF-8 character */
for (i = 0; i < len; i++) memmove(point, mb, len);
point[i] = mb[i];
/* display the character before advancing past it */ /* display the character before advancing past it */
wclrtoeol(text_win); wclrtoeol(text_win);
{ {
char buf[5]; char buf[5];
memcpy(buf, point, len); memcpy(buf, point, len);
buf[len] = '\0'; buf[len] = '\0';
waddstr(text_win, buf); waddstr(text_win, buf);
▲ Show 20 Lines • Show All 56 Lines • ▼ Show 20 Lines if (point != curr_line->line) /* if not at beginning of line */
point -= del_width; point -= del_width;
position -= del_width; position -= del_width;
temp_pos = position; temp_pos = position;
curr_line->line_length -= del_width; curr_line->line_length -= del_width;
scanline(point); scanline(point);
scr_pos = scr_horz; scr_pos = scr_horz;
if (in == 8) if (in == 8)
{ {
memcpy(d_char, point, del_width); size_t width = min(del_width, 4);
d_char[del_width] = '\0';
memcpy(d_char, point, width);
d_char[width] = '\0';
} }
while (temp_pos <= curr_line->line_length) while (temp_pos <= curr_line->line_length)
{ {
temp_pos++; temp_pos++;
*tp = *temp2; *tp = *temp2;
tp++; tp++;
temp2++; temp2++;
} }
▲ Show 20 Lines • Show All 2,044 Lines • ▼ Show 20 Linesdel_word(void)
int difference; int difference;
unsigned char *d_word2; unsigned char *d_word2;
unsigned char *d_word3; unsigned char *d_word3;
unsigned char tmp_char[5]; unsigned char tmp_char[5];
if (d_word != NULL) if (d_word != NULL)
free(d_word); free(d_word);
d_word = malloc(curr_line->line_length); d_word = malloc(curr_line->line_length);
memcpy(tmp_char, d_char, 5); memcpy(tmp_char, d_char, sizeof(tmp_char));
d_word3 = point; d_word3 = point;
d_word2 = d_word; d_word2 = d_word;
tposit = position; tposit = position;
while ((tposit < curr_line->line_length) && while ((tposit < curr_line->line_length) &&
((*d_word3 != ' ') && (*d_word3 != '\t'))) ((*d_word3 != ' ') && (*d_word3 != '\t')))
{ {
tposit++; tposit++;
*d_word2 = *d_word3; *d_word2 = *d_word3;
Show All 16 Lines while (tposit < curr_line->line_length)
tposit++; tposit++;
*d_word2 = *d_word3; *d_word2 = *d_word3;
d_word2++; d_word2++;
d_word3++; d_word3++;
} }
curr_line->line_length -= difference; curr_line->line_length -= difference;
*d_word2 = '\0'; *d_word2 = '\0';
draw_line(scr_vert, scr_horz,point,position,curr_line->line_length); draw_line(scr_vert, scr_horz,point,position,curr_line->line_length);
memcpy(d_char, tmp_char, 5); memcpy(d_char, tmp_char, sizeof(d_char));
text_changes = TRUE; text_changes = TRUE;
formatted = FALSE; formatted = FALSE;
} }
/* undelete last deleted word */ /* undelete last deleted word */
void void
undel_word(void) undel_word(void)
{ {
▲ Show 20 Lines • Show All 1,098 Lines • ▼ Show 20 LinesFormat(void)
int tmp_af; int tmp_af;
int counter; int counter;
unsigned char *line; unsigned char *line;
unsigned char *tmp_srchstr; unsigned char *tmp_srchstr;
unsigned char *temp1, *temp2; unsigned char *temp1, *temp2;
unsigned char *temp_dword; unsigned char *temp_dword;
unsigned char temp_d_char[5]; unsigned char temp_d_char[5];
memcpy(temp_d_char, d_char, 5); memcpy(temp_d_char, d_char, sizeof(temp_d_char));
/* /*
| if observ_margins is not set, or the current line is blank, | if observ_margins is not set, or the current line is blank,
| do not format the current paragraph | do not format the current paragraph
*/ */
if ((!observ_margins) || (Blank_Line(curr_line))) if ((!observ_margins) || (Blank_Line(curr_line)))
return; return;
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*/ */
if (d_word != NULL) if (d_word != NULL)
free(d_word); free(d_word);
d_word = temp_dword; d_word = temp_dword;
case_sen = temp_case; case_sen = temp_case;
free(srch_str); free(srch_str);
srch_str = tmp_srchstr; srch_str = tmp_srchstr;
memcpy(d_char, temp_d_char, 5); memcpy(d_char, temp_d_char, sizeof(d_char));
auto_format = tmp_af; auto_format = tmp_af;
midscreen(scr_vert, point); midscreen(scr_vert, point);
werase(com_win); werase(com_win);
wrefresh(com_win); wrefresh(com_win);
} }
unsigned char *init_name[3] = { unsigned char *init_name[3] = {
▲ Show 20 Lines • Show All 367 Lines • ▼ Show 20 LinesAuto_Format(void)
char not_blank; char not_blank;
unsigned char *line; unsigned char *line;
unsigned char *tmp_srchstr; unsigned char *tmp_srchstr;
unsigned char *temp1, *temp2; unsigned char *temp1, *temp2;
unsigned char *temp_dword; unsigned char *temp_dword;
unsigned char temp_d_char[5]; unsigned char temp_d_char[5];
unsigned char *tmp_d_line; unsigned char *tmp_d_line;
memcpy(temp_d_char, d_char, 5); memcpy(temp_d_char, d_char, sizeof(temp_d_char));
/* /*
| if observ_margins is not set, or the current line is blank, | if observ_margins is not set, or the current line is blank,
| do not format the current paragraph | do not format the current paragraph
*/ */
if ((!observ_margins) || (Blank_Line(curr_line))) if ((!observ_margins) || (Blank_Line(curr_line)))
return; return;
▲ Show 20 Lines • Show All 209 Lines • ▼ Show 20 Lines */
if (d_word != NULL) if (d_word != NULL)
free(d_word); free(d_word);
d_word = temp_dword; d_word = temp_dword;
d_wrd_len = temp_dwl; d_wrd_len = temp_dwl;
case_sen = temp_case; case_sen = temp_case;
free(srch_str); free(srch_str);
srch_str = tmp_srchstr; srch_str = tmp_srchstr;
memcpy(d_char, temp_d_char, 5); memcpy(d_char, temp_d_char, sizeof(d_char));
auto_format = TRUE; auto_format = TRUE;
dlt_line->line_length = tmp_d_line_length; dlt_line->line_length = tmp_d_line_length;
d_line = tmp_d_line; d_line = tmp_d_line;
formatted = TRUE; formatted = TRUE;
midscreen(scr_vert, point); midscreen(scr_vert, point);
} }
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