106 lines
4.2 KiB
C++
106 lines
4.2 KiB
C++
/*
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4coder_scope_commands.cpp - A set of commands and helpers relevant for scope level navigation and editing.
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*/
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// TOP
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CUSTOM_COMMAND_SIG(select_surrounding_scope)
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CUSTOM_DOC("Finds the scope enclosed by '{' '}' surrounding the cursor and puts the cursor and mark on the '{' and '}'.")
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{
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View_ID view = get_active_view(app, Access_ReadVisible);
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Buffer_ID buffer = view_get_buffer(app, view, Access_ReadVisible);
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i64 pos = view_get_cursor_pos(app, view);
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Range_i64 range = {};
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if (find_surrounding_nest(app, buffer, pos, FindNest_Scope, &range)){
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select_scope(app, view, range);
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}
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}
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function void
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select_next_scope_after_pos(Application_Links *app, View_ID view, Buffer_ID buffer, i64 pos){
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Find_Nest_Flag flags = FindNest_Scope;
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Range_i64 range = {};
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if (find_nest_side(app, buffer, pos + 1,
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flags, Scan_Forward, NestDelim_Open, &range) &&
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find_nest_side(app, buffer, range.end,
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flags|FindNest_Balanced|FindNest_EndOfToken, Scan_Forward,
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NestDelim_Close, &range.end)){
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select_scope(app, view, range);
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}
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}
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CUSTOM_COMMAND_SIG(select_next_scope_absolute)
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CUSTOM_DOC("Finds the first scope started by '{' after the cursor and puts the cursor and mark on the '{' and '}'.")
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{
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View_ID view = get_active_view(app, Access_ReadVisible);
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Buffer_ID buffer = view_get_buffer(app, view, Access_ReadVisible);
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i64 pos = view_get_cursor_pos(app, view);
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select_next_scope_after_pos(app, view, buffer, pos);
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}
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CUSTOM_COMMAND_SIG(select_next_scope_after_current)
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CUSTOM_DOC("Finds the first scope started by '{' after the mark and puts the cursor and mark on the '{' and '}'. This command is meant to be used after a scope is already selected so that it will have the effect of selecting the next scope after the current scope.")
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{
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View_ID view = get_active_view(app, Access_ReadVisible);
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Buffer_ID buffer = view_get_buffer(app, view, Access_ReadVisible);
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i64 pos = view_get_mark_pos(app, view);
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select_next_scope_after_pos(app, view, buffer, pos);
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}
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CUSTOM_COMMAND_SIG(select_prev_scope_absolute)
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CUSTOM_DOC("Finds the first scope started by '{' before the cursor and puts the cursor and mark on the '{' and '}'.")
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{
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View_ID view = get_active_view(app, Access_ReadVisible);
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Buffer_ID buffer = view_get_buffer(app, view, Access_ReadVisible);
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i64 pos = view_get_cursor_pos(app, view);
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Find_Nest_Flag flags = FindNest_Scope;
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Range_i64 range = {};
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if (find_nest_side(app, buffer, pos - 1,
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flags, Scan_Backward, NestDelim_Open, &range) &&
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find_nest_side(app, buffer, range.end,
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flags|FindNest_Balanced|FindNest_EndOfToken, Scan_Forward,
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NestDelim_Close, &range.end)){
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select_scope(app, view, range);
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}
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}
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CUSTOM_COMMAND_SIG(place_in_scope)
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CUSTOM_DOC("Wraps the code contained in the range between cursor and mark with a new curly brace scope.")
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{
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place_begin_and_end_on_own_lines(app, "{", "}");
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}
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CUSTOM_COMMAND_SIG(delete_current_scope)
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CUSTOM_DOC("Deletes the braces surrounding the currently selected scope. Leaves the contents within the scope.")
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{
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View_ID view = get_active_view(app, Access_ReadWriteVisible);
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Buffer_ID buffer = view_get_buffer(app, view, Access_ReadWriteVisible);
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Range_i64 range = get_view_range(app, view);
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if (buffer_get_char(app, buffer, range.min) == '{' &&
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buffer_get_char(app, buffer, range.max - 1) == '}'){
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i32 top_len = 1;
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i32 bot_len = 1;
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if (buffer_get_char(app, buffer, range.min - 1) == '\n'){
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top_len = 2;
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}
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if (buffer_get_char(app, buffer, range.max + 1) == '\n'){
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bot_len = 2;
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}
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Batch_Edit batch_first = {};
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Batch_Edit batch_last = {};
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batch_first.edit.text = SCu8();
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batch_first.edit.range = Ii64(range.min + 1 - top_len, range.min + 1);
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batch_first.next = &batch_last;
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batch_last.edit.text = SCu8();
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batch_last.edit.range = Ii64((i32)(range.max - 1), (i32)(range.max - 1 + bot_len));
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buffer_batch_edit(app, buffer, &batch_first);
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}
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}
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// BOTTOM
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