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patch 8.1.0027: difficult to make a plugin that feeds a line to a job

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Problem:    Difficult to make a plugin that feeds a line to a job.
Solution:   Add the nitial code for the "prompt" buftype.
This commit is contained in:
Bram Moolenaar
2018-06-03 14:47:35 +02:00
parent 33c5e9fa7a
commit f273245f64
22 changed files with 532 additions and 58 deletions
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78
src/edit.c
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@@ -203,6 +203,9 @@ static unsigned quote_meta(char_u *dest, char_u *str, int len);
static void ins_redraw(int ready);
static void ins_ctrl_v(void);
#ifdef FEAT_JOB_CHANNEL
static void init_prompt(int cmdchar_todo);
#endif
static void undisplay_dollar(void);
static void insert_special(int, int, int);
static void internal_format(int textwidth, int second_indent, int flags, int format_only, int c);
@@ -351,6 +354,9 @@ edit(
int inserted_space = FALSE; /* just inserted a space */
int replaceState = REPLACE;
int nomove = FALSE; /* don't move cursor on return */
#ifdef FEAT_JOB_CHANNEL
int cmdchar_todo = cmdchar;
#endif
/* Remember whether editing was restarted after CTRL-O. */
did_restart_edit = restart_edit;
@@ -707,6 +713,14 @@ edit(
foldCheckClose();
#endif
#ifdef FEAT_JOB_CHANNEL
if (bt_prompt(curbuf))
{
init_prompt(cmdchar_todo);
cmdchar_todo = NUL;
}
#endif
/*
* If we inserted a character at the last position of the last line in
* the window, scroll the window one line up. This avoids an extra
@@ -1373,6 +1387,18 @@ doESCkey:
cmdwin_result = CAR;
goto doESCkey;
}
#endif
#ifdef FEAT_JOB_CHANNEL
if (bt_prompt(curbuf))
{
buf_T *buf = curbuf;
invoke_prompt_callback();
if (curbuf != buf)
// buffer changed, get out of Insert mode
goto doESCkey;
break;
}
#endif
if (ins_eol(c) == FAIL && !p_im)
goto doESCkey; /* out of memory */
@@ -1808,6 +1834,58 @@ edit_putchar(int c, int highlight)
}
}
#if defined(FEAT_JOB_CHANNEL) || defined(PROTO)
/*
* Return the effective prompt for the current buffer.
*/
char_u *
prompt_text(void)
{
if (curbuf->b_prompt_text == NULL)
return (char_u *)"% ";
return curbuf->b_prompt_text;
}
/*
* Prepare for prompt mode: Make sure the last line has the prompt text.
* Move the cursor to this line.
*/
static void
init_prompt(int cmdchar_todo)
{
char_u *prompt = prompt_text();
char_u *text;
curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
text = ml_get_curline();
if (STRNCMP(text, prompt, STRLEN(prompt)) != 0)
{
// prompt is missing, insert it or append a line with it
if (*text == NUL)
ml_replace(curbuf->b_ml.ml_line_count, prompt, TRUE);
else
ml_append(curbuf->b_ml.ml_line_count, prompt, 0, FALSE);
curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
coladvance((colnr_T)MAXCOL);
changed_bytes(curbuf->b_ml.ml_line_count, 0);
}
if (cmdchar_todo == 'A')
coladvance((colnr_T)MAXCOL);
if (cmdchar_todo == 'I' || curwin->w_cursor.col <= (int)STRLEN(prompt))
curwin->w_cursor.col = STRLEN(prompt);
}
/*
* Return TRUE if the cursor is in the editable position of the prompt line.
*/
int
prompt_curpos_editable()
{
return curwin->w_cursor.lnum == curbuf->b_ml.ml_line_count
&& curwin->w_cursor.col >= (int)STRLEN(prompt_text());
}
#endif
/*
* Undo the previous edit_putchar().
*/