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textprop.c
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/* vi:set ts=8 sts=4 sw=4 noet:
*
* VIM - Vi IMproved by Bram Moolenaar
*
* Do ":help uganda" in Vim to read copying and usage conditions.
* Do ":help credits" in Vim to see a list of people who contributed.
* See README.txt for an overview of the Vim source code.
*/
/*
* Text properties implementation. See ":help text-properties".
*/
#include "vim.h"
#if defined(FEAT_PROP_POPUP) || defined(PROTO)
/*
* In a hashtable item "hi_key" points to "pt_name" in a proptype_T.
* This avoids adding a pointer to the hashtable item.
* PT2HIKEY() converts a proptype pointer to a hashitem key pointer.
* HIKEY2PT() converts a hashitem key pointer to a proptype pointer.
* HI2PT() converts a hashitem pointer to a proptype pointer.
*/
#define PT2HIKEY(p) ((p)->pt_name)
#define HIKEY2PT(p) ((proptype_T *)((p) - offsetof(proptype_T, pt_name)))
#define HI2PT(hi) HIKEY2PT((hi)->hi_key)
// The global text property types.
static hashtab_T *global_proptypes = NULL;
static proptype_T **global_proparray = NULL;
// The last used text property type ID.
static int proptype_id = 0;
/*
* Find a property type by name, return the hashitem.
* Returns NULL if the item can't be found.
*/
static hashitem_T *
find_prop_type_hi(char_u *name, buf_T *buf)
{
hashtab_T *ht;
hashitem_T *hi;
if (*name == NUL)
return NULL;
if (buf == NULL)
ht = global_proptypes;
else
ht = buf->b_proptypes;
if (ht == NULL)
return NULL;
hi = hash_find(ht, name);
if (HASHITEM_EMPTY(hi))
return NULL;
return hi;
}
/*
* Like find_prop_type_hi() but return the property type.
*/
static proptype_T *
find_prop_type(char_u *name, buf_T *buf)
{
hashitem_T *hi = find_prop_type_hi(name, buf);
if (hi == NULL)
return NULL;
return HI2PT(hi);
}
/*
* Get the prop type ID of "name".
* When not found return zero.
*/
int
find_prop_type_id(char_u *name, buf_T *buf)
{
proptype_T *pt = find_prop_type(name, buf);
if (pt == NULL)
return 0;
return pt->pt_id;
}
/*
* Lookup a property type by name. First in "buf" and when not found in the
* global types.
* When not found gives an error message and returns NULL.
*/
static proptype_T *
lookup_prop_type(char_u *name, buf_T *buf)
{
proptype_T *type = find_prop_type(name, buf);
if (type == NULL)
type = find_prop_type(name, NULL);
if (type == NULL)
semsg(_(e_property_type_str_does_not_exist), name);
return type;
}
/*
* Get an optional "bufnr" item from the dict in "arg".
* When the argument is not used or "bufnr" is not present then "buf" is
* unchanged.
* If "bufnr" is valid or not present return OK.
* When "arg" is not a dict or "bufnr" is invalid return FAIL.
*/
static int
get_bufnr_from_arg(typval_T *arg, buf_T **buf)
{
dictitem_T *di;
if (arg->v_type != VAR_DICT)
{
emsg(_(e_dictionary_required));
return FAIL;
}
if (arg->vval.v_dict == NULL)
return OK; // NULL dict is like an empty dict
di = dict_find(arg->vval.v_dict, (char_u *)"bufnr", -1);
if (di != NULL && (di->di_tv.v_type != VAR_NUMBER
|| di->di_tv.vval.v_number != 0))
{
*buf = get_buf_arg(&di->di_tv);
if (*buf == NULL)
return FAIL;
}
return OK;
}
/*
* prop_add({lnum}, {col}, {props})
*/
void
f_prop_add(typval_T *argvars, typval_T *rettv)
{
linenr_T start_lnum;
colnr_T start_col;
if (in_vim9script()
&& (check_for_number_arg(argvars, 0) == FAIL
|| check_for_number_arg(argvars, 1) == FAIL
|| check_for_dict_arg(argvars, 2) == FAIL))
return;
start_lnum = tv_get_number(&argvars[0]);
start_col = tv_get_number(&argvars[1]);
if (check_for_dict_arg(argvars, 2) == FAIL)
return;
rettv->vval.v_number = prop_add_common(start_lnum, start_col,
argvars[2].vval.v_dict, curbuf, &argvars[2]);
}
/*
* Attach a text property 'type_name' to the text starting
* at [start_lnum, start_col] and ending at [end_lnum, end_col] in
* the buffer "buf" and assign identifier "id".
* When "text" is not NULL add it to buf->b_textprop_text[-id - 1].
*/
static int
prop_add_one(
buf_T *buf,
char_u *type_name,
int id,
char_u *text_arg,
int text_padding_left,
int text_flags,
linenr_T start_lnum,
linenr_T end_lnum,
colnr_T start_col,
colnr_T end_col)
{
proptype_T *type;
linenr_T lnum;
int proplen;
char_u *props = NULL;
char_u *newprops;
size_t textlen;
char_u *newtext;
int i;
textprop_T tmp_prop;
char_u *text = text_arg;
int res = FAIL;
type = lookup_prop_type(type_name, buf);
if (type == NULL)
goto theend;
if (start_lnum < 1 || start_lnum > buf->b_ml.ml_line_count)
{
semsg(_(e_invalid_line_number_nr), (long)start_lnum);
goto theend;
}
if (end_lnum < start_lnum || end_lnum > buf->b_ml.ml_line_count)
{
semsg(_(e_invalid_line_number_nr), (long)end_lnum);
goto theend;
}
if (buf->b_ml.ml_mfp == NULL)
{
emsg(_(e_cannot_add_text_property_to_unloaded_buffer));
goto theend;
}
if (text != NULL)
{
garray_T *gap = &buf->b_textprop_text;
char_u *p;
// double check we got the right ID
if (-id - 1 != gap->ga_len)
iemsg("text prop ID mismatch");
if (gap->ga_growsize == 0)
ga_init2(gap, sizeof(char *), 50);
if (ga_grow(gap, 1) == FAIL)
goto theend;
((char_u **)gap->ga_data)[gap->ga_len++] = text;
// change any control character (Tab, Newline, etc.) to a Space to make
// it simpler to compute the size
for (p = text; *p != NUL; MB_PTR_ADV(p))
if (*p < ' ')
*p = ' ';
text = NULL;
}
for (lnum = start_lnum; lnum <= end_lnum; ++lnum)
{
colnr_T col; // start column use in tp_col
colnr_T sort_col; // column where it appears
long length; // in bytes
// Fetch the line to get the ml_line_len field updated.
proplen = get_text_props(buf, lnum, &props, TRUE);
textlen = buf->b_ml.ml_line_len - proplen * sizeof(textprop_T);
if (lnum == start_lnum)
col = start_col;
else
col = 1;
if (col - 1 > (colnr_T)textlen && !(col == 0 && text_arg != NULL))
{
semsg(_(e_invalid_column_number_nr), (long)start_col);
goto theend;
}
sort_col = col;
if (lnum == end_lnum)
length = end_col - col;
else
length = (int)textlen - col + 1;
if (length > (long)textlen)
length = (int)textlen; // can include the end-of-line
if (length < 0)
length = 0; // zero-width property
if (text_arg != NULL)
{
length = 1; // text is placed on one character
if (col == 0)
{
col = MAXCOL; // before or after the line
if ((text_flags & TP_FLAG_ALIGN_ABOVE) == 0)
sort_col = MAXCOL;
length += text_padding_left;
}
}
// Allocate the new line with space for the new property.
newtext = alloc(buf->b_ml.ml_line_len + sizeof(textprop_T));
if (newtext == NULL)
goto theend;
// Copy the text, including terminating NUL.
mch_memmove(newtext, buf->b_ml.ml_line_ptr, textlen);
// Find the index where to insert the new property.
// Since the text properties are not aligned properly when stored with
// the text, we need to copy them as bytes before using it as a struct.
for (i = 0; i < proplen; ++i)
{
colnr_T prop_col;
mch_memmove(&tmp_prop, props + i * sizeof(textprop_T),
sizeof(textprop_T));
// col is MAXCOL when the text goes above or after the line, when
// above we should use column zero for sorting
prop_col = (tmp_prop.tp_flags & TP_FLAG_ALIGN_ABOVE)
? 0 : tmp_prop.tp_col;
if (prop_col >= sort_col)
break;
}
newprops = newtext + textlen;
if (i > 0)
mch_memmove(newprops, props, sizeof(textprop_T) * i);
tmp_prop.tp_col = col;
tmp_prop.tp_len = length;
tmp_prop.tp_id = id;
tmp_prop.tp_type = type->pt_id;
tmp_prop.tp_flags = text_flags
| (lnum > start_lnum ? TP_FLAG_CONT_PREV : 0)
| (lnum < end_lnum ? TP_FLAG_CONT_NEXT : 0)
| ((type->pt_flags & PT_FLAG_INS_START_INCL)
? TP_FLAG_START_INCL : 0);
mch_memmove(newprops + i * sizeof(textprop_T), &tmp_prop,
sizeof(textprop_T));
if (i < proplen)
mch_memmove(newprops + (i + 1) * sizeof(textprop_T),
props + i * sizeof(textprop_T),
sizeof(textprop_T) * (proplen - i));
if (buf->b_ml.ml_flags & (ML_LINE_DIRTY | ML_ALLOCATED))
vim_free(buf->b_ml.ml_line_ptr);
buf->b_ml.ml_line_ptr = newtext;
buf->b_ml.ml_line_len += sizeof(textprop_T);
buf->b_ml.ml_flags |= ML_LINE_DIRTY;
}
changed_line_display_buf(buf);
changed_lines_buf(buf, start_lnum, end_lnum + 1, 0);
res = OK;
theend:
vim_free(text);
return res;
}
/*
* prop_add_list()
* First argument specifies the text property:
* {'type': <str>, 'id': <num>, 'bufnr': <num>}
* Second argument is a List where each item is a List with the following
* entries: [lnum, start_col, end_col]
*/
void
f_prop_add_list(typval_T *argvars, typval_T *rettv UNUSED)
{
dict_T *dict;
char_u *type_name;
buf_T *buf = curbuf;
int id = 0;
listitem_T *li;
list_T *pos_list;
linenr_T start_lnum;
colnr_T start_col;
linenr_T end_lnum;
colnr_T end_col;
int error = FALSE;
int prev_did_emsg = did_emsg;
if (check_for_dict_arg(argvars, 0) == FAIL
|| check_for_list_arg(argvars, 1) == FAIL)
return;
if (check_for_nonnull_list_arg(argvars, 1) == FAIL)
return;
dict = argvars[0].vval.v_dict;
if (dict == NULL || !dict_has_key(dict, "type"))
{
emsg(_(e_missing_property_type_name));
return;
}
type_name = dict_get_string(dict, "type", FALSE);
if (dict_has_key(dict, "id"))
id = dict_get_number(dict, "id");
if (get_bufnr_from_arg(&argvars[0], &buf) == FAIL)
return;
// This must be done _before_ we start adding properties because property
// changes trigger buffer (memline) reorganisation, which needs this flag
// to be correctly set.
buf->b_has_textprop = TRUE; // this is never reset
FOR_ALL_LIST_ITEMS(argvars[1].vval.v_list, li)
{
if (li->li_tv.v_type != VAR_LIST || li->li_tv.vval.v_list == NULL)
{
emsg(_(e_list_required));
return;
}
pos_list = li->li_tv.vval.v_list;
start_lnum = list_find_nr(pos_list, 0L, &error);
if (!error)
start_col = list_find_nr(pos_list, 1L, &error);
if (!error)
end_lnum = list_find_nr(pos_list, 2L, &error);
if (!error)
end_col = list_find_nr(pos_list, 3L, &error);
int this_id = id;
if (!error && pos_list->lv_len > 4)
this_id = list_find_nr(pos_list, 4L, &error);
if (error || start_lnum <= 0 || start_col <= 0
|| end_lnum <= 0 || end_col <= 0)
{
if (prev_did_emsg == did_emsg)
emsg(_(e_invalid_argument));
return;
}
if (prop_add_one(buf, type_name, this_id, NULL, 0, 0,
start_lnum, end_lnum, start_col, end_col) == FAIL)
return;
}
redraw_buf_later(buf, UPD_VALID);
}
/*
* Get the next ID to use for a textprop with text in buffer "buf".
*/
static int
get_textprop_id(buf_T *buf)
{
// TODO: recycle deleted entries
return -(buf->b_textprop_text.ga_len + 1);
}
// Flag that is set when a negative ID isused for a normal text property.
// It is then impossible to use virtual text properties.
static int did_use_negative_pop_id = FALSE;
/*
* Shared between prop_add() and popup_create().
* "dict_arg" is the function argument of a dict containing "bufnr".
* it is NULL for popup_create().
* Returns the "id" used for "text" or zero.
*/
int
prop_add_common(
linenr_T start_lnum,
colnr_T start_col,
dict_T *dict,
buf_T *default_buf,
typval_T *dict_arg)
{
linenr_T end_lnum;
colnr_T end_col;
char_u *type_name;
buf_T *buf = default_buf;
int id = 0;
char_u *text = NULL;
int text_padding_left = 0;
int flags = 0;
if (dict == NULL || !dict_has_key(dict, "type"))
{
emsg(_(e_missing_property_type_name));
goto theend;
}
type_name = dict_get_string(dict, "type", FALSE);
if (dict_has_key(dict, "end_lnum"))
{
end_lnum = dict_get_number(dict, "end_lnum");
if (end_lnum < start_lnum)
{
semsg(_(e_invalid_value_for_argument_str), "end_lnum");
goto theend;
}
}
else
end_lnum = start_lnum;
if (dict_has_key(dict, "length"))
{
long length = dict_get_number(dict, "length");
if (length < 0 || end_lnum > start_lnum)
{
semsg(_(e_invalid_value_for_argument_str), "length");
goto theend;
}
end_col = start_col + length;
}
else if (dict_has_key(dict, "end_col"))
{
end_col = dict_get_number(dict, "end_col");
if (end_col <= 0)
{
semsg(_(e_invalid_value_for_argument_str), "end_col");
goto theend;
}
}
else if (start_lnum == end_lnum)
end_col = start_col;
else
end_col = 1;
if (dict_has_key(dict, "id"))
id = dict_get_number(dict, "id");
if (dict_has_key(dict, "text"))
{
if (dict_has_key(dict, "length")
|| dict_has_key(dict, "end_col")
|| dict_has_key(dict, "end_lnum"))
{
emsg(_(e_cannot_use_length_endcol_and_endlnum_with_text));
goto theend;
}
text = dict_get_string(dict, "text", TRUE);
if (text == NULL)
goto theend;
// use a default length of 1 to make multiple props show up
end_col = start_col + 1;
if (dict_has_key(dict, "text_align"))
{
char_u *p = dict_get_string(dict, "text_align", FALSE);
if (p == NULL)
goto theend;
if (start_col != 0)
{
emsg(_(e_can_only_use_text_align_when_column_is_zero));
goto theend;
}
if (STRCMP(p, "right") == 0)
flags |= TP_FLAG_ALIGN_RIGHT;
else if (STRCMP(p, "above") == 0)
flags |= TP_FLAG_ALIGN_ABOVE;
else if (STRCMP(p, "below") == 0)
flags |= TP_FLAG_ALIGN_BELOW;
else if (STRCMP(p, "after") != 0)
{
semsg(_(e_invalid_value_for_argument_str_str), "text_align", p);
goto theend;
}
}
if (dict_has_key(dict, "text_padding_left"))
{
text_padding_left = dict_get_number(dict, "text_padding_left");
if (text_padding_left < 0)
{
semsg(_(e_argument_must_be_positive_str), "text_padding_left");
goto theend;
}
}
if (dict_has_key(dict, "text_wrap"))
{
char_u *p = dict_get_string(dict, "text_wrap", FALSE);
if (p == NULL)
goto theend;
if (STRCMP(p, "wrap") == 0)
flags |= TP_FLAG_WRAP;
else if (STRCMP(p, "truncate") != 0)
{
semsg(_(e_invalid_value_for_argument_str_str), "text_wrap", p);
goto theend;
}
}
}
// Column must be 1 or more for a normal text property; when "text" is
// present zero means it goes after the line.
if (start_col < (text == NULL ? 1 : 0))
{
semsg(_(e_invalid_column_number_nr), (long)start_col);
goto theend;
}
if (start_col > 0 && text_padding_left > 0)
{
emsg(_(e_can_only_use_left_padding_when_column_is_zero));
goto theend;
}
if (dict_arg != NULL && get_bufnr_from_arg(dict_arg, &buf) == FAIL)
goto theend;
if (id < 0)
{
if (buf->b_textprop_text.ga_len > 0)
{
emsg(_(e_cannot_use_negative_id_after_adding_textprop_with_text));
goto theend;
}
did_use_negative_pop_id = TRUE;
}
if (text != NULL)
{
if (did_use_negative_pop_id)
{
emsg(_(e_cannot_add_textprop_with_text_after_using_textprop_with_negative_id));
goto theend;
}
id = get_textprop_id(buf);
}
// This must be done _before_ we add the property because property changes
// trigger buffer (memline) reorganisation, which needs this flag to be
// correctly set.
buf->b_has_textprop = TRUE; // this is never reset
prop_add_one(buf, type_name, id, text, text_padding_left, flags,
start_lnum, end_lnum, start_col, end_col);
text = NULL;
redraw_buf_later(buf, UPD_VALID);
theend:
vim_free(text);
return id;
}
/*
* Fetch the text properties for line "lnum" in buffer "buf".
* Returns the number of text properties and, when non-zero, a pointer to the
* first one in "props" (note that it is not aligned, therefore the char_u
* pointer).
*/
int
get_text_props(buf_T *buf, linenr_T lnum, char_u **props, int will_change)
{
char_u *text;
size_t textlen;
size_t proplen;
// Be quick when no text property types have been defined or the buffer,
// unless we are adding one.
if ((!buf->b_has_textprop && !will_change) || buf->b_ml.ml_mfp == NULL)
return 0;
// Fetch the line to get the ml_line_len field updated.
text = ml_get_buf(buf, lnum, will_change);
textlen = STRLEN(text) + 1;
proplen = buf->b_ml.ml_line_len - textlen;
if (proplen == 0)
return 0;
if (proplen % sizeof(textprop_T) != 0)
{
iemsg(_(e_text_property_info_corrupted));
return 0;
}
*props = text + textlen;
return (int)(proplen / sizeof(textprop_T));
}
/*
* Return the number of text properties with "above" or "below" alignment in
* line "lnum". A "right" aligned property also goes below after a "below" or
* other "right" aligned property.
*/
int
prop_count_above_below(buf_T *buf, linenr_T lnum)
{
char_u *props;
int count = get_text_props(buf, lnum, &props, FALSE);
int result = 0;
textprop_T prop;
int i;
int next_right_goes_below = FALSE;
if (count == 0)
return 0;
for (i = 0; i < count; ++i)
{
mch_memmove(&prop, props + i * sizeof(prop), sizeof(prop));
if (prop.tp_col == MAXCOL && text_prop_type_valid(buf, &prop))
{
if ((prop.tp_flags & TP_FLAG_ALIGN_BELOW)
|| (next_right_goes_below
&& (prop.tp_flags & TP_FLAG_ALIGN_RIGHT)))
{
next_right_goes_below = TRUE;
++result;
}
else if (prop.tp_flags & TP_FLAG_ALIGN_ABOVE)
{
next_right_goes_below = FALSE;
++result;
}
else if (prop.tp_flags & TP_FLAG_ALIGN_RIGHT)
next_right_goes_below = TRUE;
}
}
return result;
}
/**
* Return the number of text properties on line "lnum" in the current buffer.
* When "only_starting" is true only text properties starting in this line will
* be considered.
* When "last_line" is FALSE then text properties after the line are not
* counted.
*/
int
count_props(linenr_T lnum, int only_starting, int last_line)
{
char_u *props;
int proplen = get_text_props(curbuf, lnum, &props, 0);
int result = proplen;
int i;
textprop_T prop;
for (i = 0; i < proplen; ++i)
{
mch_memmove(&prop, props + i * sizeof(prop), sizeof(prop));
// A prop is dropped when in the first line and it continues from the
// previous line, or when not in the last line and it is virtual text
// after the line.
if ((only_starting && (prop.tp_flags & TP_FLAG_CONT_PREV))
|| (!last_line && prop.tp_col == MAXCOL)
|| !text_prop_type_valid(curbuf, &prop))
--result;
}
return result;
}
static textprop_T *text_prop_compare_props;
static buf_T *text_prop_compare_buf;
/*
* Score for sorting on position of the text property: 0: above,
* 1: after (default), 2: right, 3: below (comes last)
*/
static int
text_prop_order(int flags)
{
if (flags & TP_FLAG_ALIGN_ABOVE)
return 0;
if (flags & TP_FLAG_ALIGN_RIGHT)
return 2;
if (flags & TP_FLAG_ALIGN_BELOW)
return 3;
return 1;
}
/*
* Function passed to qsort() to sort text properties.
* Return 1 if "s1" has priority over "s2", -1 if the other way around, zero if
* both have the same priority.
*/
static int
text_prop_compare(const void *s1, const void *s2)
{
int idx1, idx2;
textprop_T *tp1, *tp2;
proptype_T *pt1, *pt2;
colnr_T col1, col2;
idx1 = *(int *)s1;
idx2 = *(int *)s2;
tp1 = &text_prop_compare_props[idx1];
tp2 = &text_prop_compare_props[idx2];
col1 = tp1->tp_col;
col2 = tp2->tp_col;
if (col1 == MAXCOL && col2 == MAXCOL)
{
int order1 = text_prop_order(tp1->tp_flags);
int order2 = text_prop_order(tp2->tp_flags);
// both props add text before or after the line, sort on order where it
// is added
if (order1 != order2)
return order1 < order2 ? 1 : -1;
}
// property that inserts text has priority over one that doesn't
if ((tp1->tp_id < 0) != (tp2->tp_id < 0))
return tp1->tp_id < 0 ? 1 : -1;
// check highest priority, defined by the type
pt1 = text_prop_type_by_id(text_prop_compare_buf, tp1->tp_type);
pt2 = text_prop_type_by_id(text_prop_compare_buf, tp2->tp_type);
if (pt1 != pt2)
{
if (pt1 == NULL)
return -1;
if (pt2 == NULL)
return 1;
if (pt1->pt_priority != pt2->pt_priority)
return pt1->pt_priority > pt2->pt_priority ? 1 : -1;
}
// same priority, one that starts first wins
if (col1 != col2)
return col1 < col2 ? 1 : -1;
// for a property with text the id can be used as tie breaker
if (tp1->tp_id < 0)
return tp1->tp_id > tp2->tp_id ? 1 : -1;
return 0;
}
/*
* Sort "count" text properties using an array if indexes "idxs" into the list
* of text props "props" for buffer "buf".
*/
void
sort_text_props(
buf_T *buf,
textprop_T *props,
int *idxs,
int count)
{
text_prop_compare_buf = buf;
text_prop_compare_props = props;
qsort((void *)idxs, (size_t)count, sizeof(int), text_prop_compare);
}
/*
* Find text property "type_id" in the visible lines of window "wp".
* Match "id" when it is > 0.
* Returns FAIL when not found.
*/
int
find_visible_prop(
win_T *wp,
int type_id,
int id,
textprop_T *prop,
linenr_T *found_lnum)
{
// return when "type_id" no longer exists
if (text_prop_type_by_id(wp->w_buffer, type_id) == NULL)
return FAIL;
// w_botline may not have been updated yet.
validate_botline_win(wp);
for (linenr_T lnum = wp->w_topline; lnum < wp->w_botline; ++lnum)
{
char_u *props;
int count = get_text_props(wp->w_buffer, lnum, &props, FALSE);
for (int i = 0; i < count; ++i)
{
mch_memmove(prop, props + i * sizeof(textprop_T),
sizeof(textprop_T));
if (prop->tp_type == type_id && (id <= 0 || prop->tp_id == id))
{
*found_lnum = lnum;
return OK;
}
}
}
return FAIL;
}
/*
* Set the text properties for line "lnum" to "props" with length "len".
* If "len" is zero text properties are removed, "props" is not used.
* Any existing text properties are dropped.
* Only works for the current buffer.
*/
static void
set_text_props(linenr_T lnum, char_u *props, int len)
{
char_u *text;
char_u *newtext;
int textlen;
text = ml_get(lnum);
textlen = (int)STRLEN(text) + 1;
newtext = alloc(textlen + len);
if (newtext == NULL)
return;
mch_memmove(newtext, text, textlen);
if (len > 0)
mch_memmove(newtext + textlen, props, len);
if (curbuf->b_ml.ml_flags & (ML_LINE_DIRTY | ML_ALLOCATED))
vim_free(curbuf->b_ml.ml_line_ptr);
curbuf->b_ml.ml_line_ptr = newtext;
curbuf->b_ml.ml_line_len = textlen + len;
curbuf->b_ml.ml_flags |= ML_LINE_DIRTY;
}
/*
* Add "text_props" with "text_prop_count" text properties to line "lnum".
*/
void
add_text_props(linenr_T lnum, textprop_T *text_props, int text_prop_count)
{
char_u *text;
char_u *newtext;
int proplen = text_prop_count * (int)sizeof(textprop_T);
text = ml_get(lnum);
newtext = alloc(curbuf->b_ml.ml_line_len + proplen);
if (newtext == NULL)
return;
mch_memmove(newtext, text, curbuf->b_ml.ml_line_len);
mch_memmove(newtext + curbuf->b_ml.ml_line_len, text_props, proplen);
if (curbuf->b_ml.ml_flags & (ML_LINE_DIRTY | ML_ALLOCATED))
vim_free(curbuf->b_ml.ml_line_ptr);
curbuf->b_ml.ml_line_ptr = newtext;
curbuf->b_ml.ml_line_len += proplen;
curbuf->b_ml.ml_flags |= ML_LINE_DIRTY;
}
/*
* Function passed to qsort() for sorting proptype_T on pt_id.
*/
static int
compare_pt(const void *s1, const void *s2)
{
proptype_T *tp1 = *(proptype_T **)s1;
proptype_T *tp2 = *(proptype_T **)s2;
return tp1->pt_id == tp2->pt_id ? 0 : tp1->pt_id < tp2->pt_id ? -1 : 1;
}
static proptype_T *
find_type_by_id(hashtab_T *ht, proptype_T ***array, int id)
{
int low = 0;
int high;
if (ht == NULL || ht->ht_used == 0)
return NULL;
// Make the lookup faster by creating an array with pointers to
// hashtable entries, sorted on pt_id.
if (*array == NULL)
{
long todo;
hashitem_T *hi;
int i = 0;
*array = ALLOC_MULT(proptype_T *, ht->ht_used);
if (*array == NULL)
return NULL;
todo = (long)ht->ht_used;
FOR_ALL_HASHTAB_ITEMS(ht, hi, todo)
{
if (!HASHITEM_EMPTY(hi))
{
(*array)[i++] = HI2PT(hi);
--todo;
}
}
qsort((void *)*array, ht->ht_used, sizeof(proptype_T *), compare_pt);
}
// binary search in the sorted array
high = ht->ht_used;
while (high > low)
{
int m = (high + low) / 2;
if ((*array)[m]->pt_id == id)
return (*array)[m];
if ((*array)[m]->pt_id > id)
high = m;
else
low = m + 1;
}
return NULL;
}
/*
* Fill 'dict' with text properties in 'prop'.
*/
static void
prop_fill_dict(dict_T *dict, textprop_T *prop, buf_T *buf)
{
proptype_T *pt;
int buflocal = TRUE;
dict_add_number(dict, "col", prop->tp_col);
dict_add_number(dict, "length", prop->tp_len);
dict_add_number(dict, "id", prop->tp_id);
dict_add_number(dict, "start", !(prop->tp_flags & TP_FLAG_CONT_PREV));
dict_add_number(dict, "end", !(prop->tp_flags & TP_FLAG_CONT_NEXT));
pt = find_type_by_id(buf->b_proptypes, &buf->b_proparray, prop->tp_type);
if (pt == NULL)
{
pt = find_type_by_id(global_proptypes, &global_proparray,
prop->tp_type);
buflocal = FALSE;
}
if (pt != NULL)
dict_add_string(dict, "type", pt->pt_name);
if (buflocal)
dict_add_number(dict, "type_bufnr", buf->b_fnum);
else
dict_add_number(dict, "type_bufnr", 0);
}
/*
* Find a property type by ID in "buf" or globally.
* Returns NULL if not found.
*/
proptype_T *
text_prop_type_by_id(buf_T *buf, int id)