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| -rw-r--r-- | .gitattributes | 3 | ||||
| -rw-r--r-- | LICENSE-CC-BY.txt | 395 | ||||
| -rw-r--r-- | LICENSE-MIT.txt | 21 | ||||
| -rw-r--r-- | README.md | 11 | ||||
| -rw-r--r-- | setenv.sh | 112 |
5 files changed, 540 insertions, 2 deletions
diff --git a/.gitattributes b/.gitattributes new file mode 100644 index 0000000..d76765e --- /dev/null +++ b/.gitattributes @@ -0,0 +1,3 @@ +* text=auto + +*.sh text eol=lf diff --git a/LICENSE-CC-BY.txt b/LICENSE-CC-BY.txt new file mode 100644 index 0000000..2f244ac --- /dev/null +++ b/LICENSE-CC-BY.txt @@ -0,0 +1,395 @@ +Attribution 4.0 International + +======================================================================= + +Creative Commons Corporation ("Creative Commons") is not a law firm and +does not provide legal services or legal advice. Distribution of +Creative Commons public licenses does not create a lawyer-client or +other relationship. Creative Commons makes its licenses and related +information available on an "as-is" basis. Creative Commons gives no +warranties regarding its licenses, any material licensed under their +terms and conditions, or any related information. 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If the provision + cannot be reformed, it shall be severed from this Public License + without affecting the enforceability of the remaining terms and + conditions. + + c. No term or condition of this Public License will be waived and no + failure to comply consented to unless expressly agreed to by the + Licensor. + + d. Nothing in this Public License constitutes or may be interpreted + as a limitation upon, or waiver of, any privileges and immunities + that apply to the Licensor or You, including from the legal + processes of any jurisdiction or authority. + + +======================================================================= + +Creative Commons is not a party to its public +licenses. Notwithstanding, Creative Commons may elect to apply one of +its public licenses to material it publishes and in those instances +will be considered the “Licensor.” The text of the Creative Commons +public licenses is dedicated to the public domain under the CC0 Public +Domain Dedication. Except for the limited purpose of indicating that +material is shared under a Creative Commons public license or as +otherwise permitted by the Creative Commons policies published at +creativecommons.org/policies, Creative Commons does not authorize the +use of the trademark "Creative Commons" or any other trademark or logo +of Creative Commons without its prior written consent including, +without limitation, in connection with any unauthorized modifications +to any of its public licenses or any other arrangements, +understandings, or agreements concerning use of licensed material. For +the avoidance of doubt, this paragraph does not form part of the +public licenses. + +Creative Commons may be contacted at creativecommons.org. diff --git a/LICENSE-MIT.txt b/LICENSE-MIT.txt new file mode 100644 index 0000000..22f89cc --- /dev/null +++ b/LICENSE-MIT.txt @@ -0,0 +1,21 @@ +The MIT License (MIT) + +Copyright (c) 2016 Egor Tensin <Egor.Tensin@gmail.com> + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. @@ -20,7 +20,14 @@ analyzing in case one's a good student. License ------- -The annotations are available under a [Creative Commons Attribution 4.0 -International License][CC BY 4.0]. +This project, including all of the files and their contents, is licensed under +the terms of the MIT License. +See [LICENSE-MIT.txt] for details. +In addition, the annotations in *.pgn files are dual-licensed under the +[Creative Commons Attribution 4.0 International License][CC BY 4.0]. +See [LICENSE-CC-BY.txt] for details. + +[LICENSE-MIT.txt]: LICENSE-MIT.txt +[LICENSE-CC-BY.txt]: LICENSE-CC-BY.txt [CC BY 4.0]: https://creativecommons.org/licenses/by/4.0/ diff --git a/setenv.sh b/setenv.sh new file mode 100644 index 0000000..befb4e5 --- /dev/null +++ b/setenv.sh @@ -0,0 +1,112 @@ +#!/usr/bin/env bash + +# Copyright 2016 Egor Tensin <Egor.Tensin@gmail.com> +# This file is licensed under the terms of the MIT License. +# See LICENSE.txt for details. + +# Utility functions and aliases for "prettifying" PGN files (mostly those +# downloaded from Chess.com). + +# You can use the functions and aliases from this file by "sourcing" it in +# `bash` (other shells might work as well): +# +# > source setenv.sh +# +# `bash` 4.3.42, distributed by the Cygwin project, has been verified to work +# properly. +# The dependencies, along with their respective versions that were verified to +# work properly (also provided by the Cygwin project), are +# +# * `coreutils` 8.25, +# * `sed` 4.2.2. +# +# Any Cygwin installation must already have the corresponding packages +# installed. + +# I consider a PGN file to be "pretty" if it +# +# 1. has Windows-style newlines (\r\n), +# 2. places the main line moves on separates lines, +# 3. doesn't have [%clk] tags after the moves, as those are redundant for +# storage and analysis (at least that's my opinion currently). +# +# The list above is highly subjective of course. + +# A word of warning: be very careful when trying to apply the routines from +# this file to your PGNs, as the result might be disastrous if a PGN is +# formatted in an unexpected way. +# You definitely should backup the files prior to trying to "prettify" them. +# +# Those precautions aside, if you do want to format PGNs downloaded from +# Chess.com in a manner I described above, call the `normalize_pgn` function +# by passing the paths to the PGN files you want to "prettify". +# For example, +# +# > normalize_pgns Kasparov_vs_Karpov.pgn MyCrushingWin.pgn +# +# You can also compress a bunch of PGNs into a single PGN file: +# +# > join_pgns Kasparov_vs_Karpov.pgn MyCrushingWin.pgn > MemorableGames.pgn +# +# Or you might want to add a game from a PGN file to a database of games: +# +# > append_pgn MemorableGames.pgn MyCrushingDefeat.pgn + +# "Lints" PGN files. +# Each PGN +# +# * has its Unix-style newlines (\n) replaced by Windows-style newlines (\r\n), +# * gets whitespace characters trimmed from the end of each line, +# * gets trailing newlines trimmed from the end of the file, +# * gets a single newline (\r\n) appended at the end of the file. +lint_pgn() { + + sed --binary --in-place 's/\r\?$/\r/' "$@" \ + && sed --binary --in-place 's/[[:blank:]]*\(\r\?\)$/\1/' "$@" \ + && sed --binary --in-place -e :a -e '/^\(\r\n\)*\r$/{$d;N;ba}' "$@" \ + && sed --binary --in-place '$s/\r\?$/\r/;a\' "$@" +} + +# Strips [%clk] tags from PGN files. +alias strip_pgn_clk='sed --binary --in-place '"'"'s/ {\[%clk [[:digit:]]\+:[[:digit:]]\+\(:[[:digit:]]\+\)*\]}//g'"'" + +# Places main line moves at separate lines. +alias slice_pgn_moves='sed --binary --in-place '"'"'s/ \([[:digit:]]\+\.\)/\r\n\1/g'"'" + +# "Prettifies" PGN files by (see above) +# +# * "linting" them, +# * stripping [%clk] tags, +# * placing main line moves at separate lines. +normalize_pgn() { + lint_pgn "$@" \ + && strip_pgn_clk "$@" \ + && slice_pgn_moves "$@" +} + +append_pgn() { + if [ "$#" -ne 2 ]; then + echo "usage: $FUNCNAME DEST_PGN SRC_PGN" >&2 + return 1 + fi + + printf '\r\n' >> "$1" \ + && cat "$2" >> "$1" +} + +join_pgns() ( + if [ "$#" -eq 0 ]; then + echo "usage: $FUNCNAME [PGN_FILE]" + return 0 + fi + + set -o errexit + + cat "$1" + + local i + for i in "${@:2}"; do + printf '\r\n' + cat "$i" + done +) |