413 lines
9.0 KiB
C++
413 lines
9.0 KiB
C++
/*
|
|
* Mr. 4th Dimention - Allen Webster
|
|
* Four Tech
|
|
*
|
|
* public domain -- no warranty is offered or implied; use this code at your own risk
|
|
*
|
|
* 23.10.2015
|
|
*
|
|
* Items shared by gap buffer types
|
|
*
|
|
*/
|
|
|
|
// TOP
|
|
|
|
#include "../4coder_buffer_types.h"
|
|
|
|
#ifndef inline_4tech
|
|
#define inline_4tech inline
|
|
#endif
|
|
|
|
#ifndef internal_4tech
|
|
#define internal_4tech static
|
|
#endif
|
|
|
|
#ifndef memset_4tech
|
|
#define memset_4tech memset
|
|
#endif
|
|
|
|
#ifndef memzero_4tech
|
|
#define memzero_4tech(x) ((x) = {})
|
|
#endif
|
|
|
|
#ifndef memcpy_4tech
|
|
#define memcpy_4tech memcpy
|
|
#endif
|
|
|
|
#ifndef memmove_4tech
|
|
#define memmove_4tech memmove
|
|
#endif
|
|
|
|
#ifndef debug_4tech
|
|
#define debug_4tech(x) x
|
|
#endif
|
|
|
|
#ifndef assert_4tech
|
|
#define assert_4tech assert
|
|
#endif
|
|
|
|
#ifndef ceil_4tech
|
|
#define ceil_4tech CEIL32
|
|
#endif
|
|
|
|
#ifndef div_ceil_4tech
|
|
#define div_ceil_4tech DIVCEIL32
|
|
#endif
|
|
|
|
#ifndef cat_4tech
|
|
#define cat_4tech_(a,b) a##b
|
|
#define cat_4tech(a,b) cat_4tech_(a,b)
|
|
#endif
|
|
|
|
#ifndef round_up_4tech
|
|
internal_4tech int
|
|
lroundup_(int x, int granularity){
|
|
int original_x;
|
|
original_x = x;
|
|
x /= granularity;
|
|
x *= granularity;
|
|
if (x < original_x) x += granularity;
|
|
return x;
|
|
}
|
|
#define round_up_4tech(x,g) lroundup_(x,g)
|
|
#endif
|
|
|
|
#ifndef round_pot_4tech
|
|
#define round_pot_4tech ROUNDPOT32
|
|
#endif
|
|
|
|
#define measure_character(a,c) ((a)[c])
|
|
|
|
typedef struct Buffer_Edit{
|
|
int str_start, len;
|
|
int start, end;
|
|
} Buffer_Edit;
|
|
|
|
typedef struct Buffer_Batch_State{
|
|
int i;
|
|
int shift_total;
|
|
} Buffer_Batch_State;
|
|
|
|
inline_4tech Full_Cursor
|
|
make_cursor_hint(int line_index, int *starts, float *wrap_ys, float font_height){
|
|
Full_Cursor hint;
|
|
hint.pos = starts[line_index];
|
|
hint.line = line_index + 1;
|
|
hint.character = 1;
|
|
hint.unwrapped_y = (float)(line_index * font_height);
|
|
hint.unwrapped_x = 0;
|
|
hint.wrapped_y = wrap_ys[line_index];
|
|
hint.wrapped_x = 0;
|
|
return(hint);
|
|
}
|
|
|
|
typedef struct Cursor_With_Index{
|
|
int pos, index;
|
|
} Cursor_With_Index;
|
|
|
|
inline_4tech void
|
|
write_cursor_with_index(Cursor_With_Index *positions, int *count, int pos){
|
|
positions[*count].index = *count;
|
|
positions[*count].pos = pos;
|
|
++*count;
|
|
}
|
|
|
|
#define CursorSwap__(a,b) { Cursor_With_Index t = a; a = b; b = t; }
|
|
|
|
internal_4tech void
|
|
buffer_quick_sort_cursors(Cursor_With_Index *positions, int start, int pivot){
|
|
int i, mid;
|
|
int pivot_pos;
|
|
|
|
mid = start;
|
|
pivot_pos = positions[pivot].pos;
|
|
for (i = mid; i < pivot; ++i){
|
|
if (positions[i].pos < pivot_pos){
|
|
CursorSwap__(positions[mid], positions[i]);
|
|
++mid;
|
|
}
|
|
}
|
|
CursorSwap__(positions[mid], positions[pivot]);
|
|
|
|
if (start < mid - 1) buffer_quick_sort_cursors(positions, start, mid - 1);
|
|
if (mid + 1 < pivot) buffer_quick_sort_cursors(positions, mid + 1, pivot);
|
|
}
|
|
|
|
internal_4tech void
|
|
buffer_quick_unsort_cursors(Cursor_With_Index *positions, int start, int pivot){
|
|
int i, mid;
|
|
int pivot_index;
|
|
|
|
mid = start;
|
|
pivot_index = positions[pivot].index;
|
|
for (i = mid; i < pivot; ++i){
|
|
if (positions[i].index < pivot_index){
|
|
CursorSwap__(positions[mid], positions[i]);
|
|
++mid;
|
|
}
|
|
}
|
|
CursorSwap__(positions[mid], positions[pivot]);
|
|
|
|
if (start < mid - 1) buffer_quick_unsort_cursors(positions, start, mid - 1);
|
|
if (mid + 1 < pivot) buffer_quick_unsort_cursors(positions, mid + 1, pivot);
|
|
}
|
|
|
|
#undef CursorSwap__
|
|
|
|
inline_4tech void
|
|
buffer_sort_cursors(Cursor_With_Index *positions, int count){
|
|
assert_4tech(count > 0);
|
|
buffer_quick_sort_cursors(positions, 0, count-1);
|
|
}
|
|
|
|
inline_4tech void
|
|
buffer_unsort_cursors(Cursor_With_Index *positions, int count){
|
|
assert_4tech(count > 0);
|
|
buffer_quick_unsort_cursors(positions, 0, count-1);
|
|
}
|
|
|
|
internal_4tech void
|
|
buffer_update_cursors(Cursor_With_Index *sorted_positions, int count, int start, int end, int len){
|
|
Cursor_With_Index *position;
|
|
int shift_amount;
|
|
|
|
shift_amount = (len - (end - start));
|
|
|
|
position = sorted_positions + count - 1;
|
|
for (; position >= sorted_positions && position->pos >= end; --position) position->pos += shift_amount;
|
|
for (; position >= sorted_positions && position->pos >= start; --position) position->pos = start;
|
|
}
|
|
|
|
internal_4tech int
|
|
buffer_batch_debug_sort_check(Buffer_Edit *sorted_edits, int edit_count){
|
|
Buffer_Edit *edit;
|
|
int i, result, start_point;
|
|
|
|
result = 1;
|
|
start_point = 0;
|
|
|
|
edit = sorted_edits;
|
|
for (i = 0; i < edit_count; ++i, ++edit){
|
|
if (start_point > edit->start){
|
|
result = 0; break;
|
|
}
|
|
start_point = (edit->end < edit->start + 1)?edit->start + 1:edit->end;
|
|
}
|
|
|
|
return(result);
|
|
}
|
|
|
|
internal_4tech int
|
|
buffer_batch_edit_max_shift(Buffer_Edit *sorted_edits, int edit_count){
|
|
Buffer_Edit *edit;
|
|
int i, result;
|
|
int shift_total, shift_max;
|
|
|
|
result = 0;
|
|
shift_total = 0;
|
|
shift_max = 0;
|
|
|
|
edit = sorted_edits;
|
|
for (i = 0; i < edit_count; ++i, ++edit){
|
|
shift_total += (edit->len - (edit->end - edit->start));
|
|
if (shift_total > shift_max) shift_max = shift_total;
|
|
}
|
|
|
|
return(shift_max);
|
|
}
|
|
|
|
internal_4tech void
|
|
buffer_batch_edit_update_cursors(Cursor_With_Index *sorted_positions, int count, Buffer_Edit *sorted_edits, int edit_count){
|
|
Cursor_With_Index *position, *end_position;
|
|
Buffer_Edit *edit, *end_edit;
|
|
int start, end;
|
|
int shift_amount;
|
|
|
|
position = sorted_positions;
|
|
end_position = sorted_positions + count;
|
|
|
|
edit = sorted_edits;
|
|
end_edit = sorted_edits + edit_count;
|
|
|
|
shift_amount = 0;
|
|
|
|
for (; edit < end_edit && position < end_position; ++edit){
|
|
start = edit->start;
|
|
end = edit->end;
|
|
|
|
for (; position->pos < start && position < end_position; ++position){
|
|
position->pos += shift_amount;
|
|
}
|
|
|
|
for (; position->pos < end && position < end_position; ++position){
|
|
position->pos = start + shift_amount;
|
|
}
|
|
|
|
shift_amount += (edit->len - (end - start));
|
|
}
|
|
|
|
for (; position < end_position; ++position){
|
|
position->pos += shift_amount;
|
|
}
|
|
}
|
|
|
|
internal_4tech int
|
|
eol_convert_in(char *dest, char *src, int size){
|
|
int i, j, k;
|
|
|
|
i = 0;
|
|
k = 0;
|
|
j = 0;
|
|
|
|
for (; j < size && src[j] != '\r'; ++j);
|
|
memcpy_4tech(dest, src, j);
|
|
|
|
if (j < size){
|
|
k = 1;
|
|
++j;
|
|
for (i = j; i < size; ++i){
|
|
if (src[i] == '\r'){
|
|
memcpy_4tech(dest + j - k, src + j, i - j);
|
|
++k;
|
|
j = i+1;
|
|
}
|
|
}
|
|
memcpy_4tech(dest + j - k, src + j, i - j);
|
|
j = i - k;
|
|
}
|
|
|
|
return(j);
|
|
}
|
|
|
|
internal_4tech int
|
|
eol_in_place_convert_in(char *data, int size){
|
|
int i, j, k;
|
|
|
|
i = 0;
|
|
k = 0;
|
|
j = 0;
|
|
|
|
for (; j < size && data[j] != '\r'; ++j);
|
|
|
|
if (j < size){
|
|
k = 1;
|
|
++j;
|
|
for (i = j; i < size; ++i){
|
|
if (data[i] == '\r'){
|
|
memmove_4tech(data + j - k, data + j, i - j);
|
|
++k;
|
|
j = i+1;
|
|
}
|
|
}
|
|
memmove_4tech(data + j - k, data + j, i - j);
|
|
j = i - k;
|
|
}
|
|
|
|
return(j);
|
|
}
|
|
|
|
internal_4tech int
|
|
eol_convert_out(char *dest, int max, char *src, int size, int *size_out){
|
|
int result;
|
|
int i, j;
|
|
|
|
// TODO(allen): iterative memory check?
|
|
result = 1;
|
|
i = 0;
|
|
j = 0;
|
|
|
|
for (; i < size; ++i, ++j){
|
|
if (src[i] == '\n'){
|
|
dest[j] = '\r';
|
|
++j;
|
|
dest[j] = '\n';
|
|
}
|
|
else dest[j] = src[i];
|
|
}
|
|
|
|
*size_out = j;
|
|
return(result);
|
|
}
|
|
|
|
internal_4tech int
|
|
eol_in_place_convert_out(char *data, int size, int max, int *size_out){
|
|
int result;
|
|
int i;
|
|
|
|
// TODO(allen): iterative memory check?
|
|
result = 1;
|
|
i = 0;
|
|
|
|
for (; i < size; ++i){
|
|
if (data[i] == '\n'){
|
|
memmove_4tech(data + i + 1, data + i, size - i);
|
|
data[i] = '\r';
|
|
++i;
|
|
++size;
|
|
}
|
|
}
|
|
|
|
*size_out = size;
|
|
return(result);
|
|
}
|
|
|
|
inline_4tech int
|
|
is_whitespace(char c){
|
|
int result;
|
|
result = (c == ' ' || c == '\n' || c == '\r' || c == '\t' || c == '\f' || c == '\v');
|
|
return(result);
|
|
}
|
|
|
|
inline_4tech int
|
|
is_alphanumeric_true(char c){
|
|
return (c >= 'a' && c <= 'z' || c >= 'A' && c <= 'Z' || c >= '0' && c <= '9');
|
|
}
|
|
|
|
inline_4tech int
|
|
is_alphanumeric(char c){
|
|
return (c >= 'a' && c <= 'z' || c >= 'A' && c <= 'Z' || c >= '0' && c <= '9' || c == '_');
|
|
}
|
|
|
|
inline_4tech int
|
|
is_upper(char c){
|
|
return (c >= 'A' && c <= 'Z');
|
|
}
|
|
|
|
inline_4tech int
|
|
is_lower(char c){
|
|
return (c >= 'a' && c <= 'z');
|
|
}
|
|
|
|
inline_4tech char
|
|
to_upper(char c){
|
|
if (is_lower(c)){
|
|
c += 'A' - 'a';
|
|
}
|
|
return(c);
|
|
}
|
|
|
|
internal_4tech int
|
|
is_match(char *a, char *b, int len){
|
|
int result;
|
|
|
|
result = 1;
|
|
for (;len > 0; --len, ++a, ++b)
|
|
if (*a != *b) { result = 0; break; }
|
|
|
|
return(result);
|
|
}
|
|
|
|
internal_4tech int
|
|
is_match_insensitive(char *a, char *b, int len){
|
|
int result;
|
|
|
|
result = 1;
|
|
for (;len > 0; --len, ++a, ++b)
|
|
if (to_upper(*a) != to_upper(*b)) { result = 0; break; }
|
|
|
|
return(result);
|
|
}
|
|
|
|
// BOTTOM
|
|
|