85 lines
2.3 KiB
Bash
85 lines
2.3 KiB
Bash
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#!/bin/bash
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##
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## Copyright (c) 2010 The VP8 project authors. All Rights Reserved.
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##
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## Use of this source code is governed by a BSD-style license and patent
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## grant that can be found in the LICENSE file in the root of the source
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## tree. All contributing project authors may be found in the AUTHORS
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## file in the root of the source tree.
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##
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# gen_example_code.sh
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self=$0
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die_usage() {
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echo "Usage: $self <example.txt>"
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exit 1
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}
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die() {
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echo "$@"
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exit 1
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}
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include_block() {
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show_bar=$1
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block_name=${line##*@}
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indent=${line%%${block_name}}
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indent=${#indent}
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[ $indent -eq 1 ] && indent=0
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local on_block
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while IFS=$'\n' read -r t_line; do
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case "$t_line" in
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\~*\ ${block_name})
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if [ "x$on_block" == "xyes" ]; then
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return 0;
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else
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on_block=yes
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fi
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;;
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@DEFAULT)
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if [ "x$on_block" == "xyes" ]; then
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include_block $show_bar < "${template%.c}.txt"
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return 0
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fi
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;;
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*)
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if [ "x$on_block" == "xyes" ]; then
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local rem
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(( rem = 78 - indent ))
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case "$block_name" in
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\**) printf "%${indent}s * %s\n" "" "$t_line" ;;
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*)
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if [ "$show_bar" == "yes" ]; then
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printf "%${indent}s%-${rem}s//\n" "" "$t_line"
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else
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printf "%${indent}s%s\n" "" "$t_line"
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fi
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;;
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esac
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fi
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esac
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done
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return 1
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}
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txt=$1
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[ -f "$txt" ] || die_usage
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read -r template < "$txt"
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case "$template" in
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@TEMPLATE*) template=${txt%/*}/${template##@TEMPLATE } ;;
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*) die "Failed to parse template name from '$template'" ;;
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esac
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while IFS=$'\n' read -r line; do
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case "$line" in
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@*) include_block yes < "$txt" \
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|| include_block < "${template%.c}.txt" \
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#|| echo "WARNING: failed to find text for block $block_name" >&2
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;;
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*) echo "$line" ;;
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esac
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done < "$template"
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