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21
LICENSE
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21
LICENSE
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MIT License
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Copyright (c) 2022 Антон Аксенов (aka Anthony Axenov)
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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47
README.md
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README.md
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# env syntax support plugin for lite-xl
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[Lite-XL](https://lite-xl.com/) is lightweight, fast and customizable open-source code editor.
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This plugin adds syntax support for `*.env` files using *very simple* rules.
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Unfortunately, in fact `env`-file syntax is more complicated than it seems, so current solution doesn't cover ALL possible syntax combinations.
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My goal is to do so somehow in future but I think plugin is already good enought to use in most of basic cases.
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Currently available highlighting:
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* line and inline comments;
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* keys;
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* `export`;
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* values:
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* literals: `null`, `true`, `false`, `\n`, `\r`, `\t`, `\f`, `\b`, `\\`, `\"`, `\'`;
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* numerics;
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* strings:
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* one-lined (inside `'...'` or `"..."`)
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* multiline (inside `"""..."""` or `'''...'''`);
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* string interpolation `${myvar}`;
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TODO and known issues:
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* unquoted string values are not highlighted as string;
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* quotes inside unquoted strings are not escaped (highlighted substring inside not highlighted string);
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* in unquoted string values, word + `=` are showed as inlined key;
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* inside any quoted strings interpolations and literals are not highlighted;
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* numeric values containing more than 1 decimal separator are not highlighted as string;
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* literals used as keys must be highlighted as keys, not literals;
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* quoted strings used as keys must be highlighted as keys, not strings;
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* escaped literals must not be used keys;
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* ...
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You can use `test.env` file to check how plugin works.
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## How to install
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To install a plugin:
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* Drop `language_env.lua` file in:
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* Linux: `~/.config/lite-xl/plugins/`
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* MacOS: `~/.config/lite-xl/plugins/`
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* Windows: `C:\Users\(username)\.config\lite-xl\plugins\`
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* If lite-xl is already opened then save files just press `Ctrl`+`Shift`+`P` => `rst` => `Enter` to reboot editor's core and load plugin immidiately.
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## License
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[The MIT License](LICENSE)
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43
language_env.lua
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language_env.lua
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-- mod-version:2
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-- Anthony Axenov (c) 2022, The MIT License
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-- https://github.com/anthonyaxenov/lite-xl-env-syntax
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local syntax = require "core.syntax"
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syntax.add {
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name = "language_env",
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files = { "%.env$" },
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comment = '#',
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symbols = {},
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patterns = {
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{type = "comment" , pattern = "#.*$"},
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{type = "function", pattern = "export"},
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{type = "literal", pattern = "[Nn][Uu][Ll][Ll]%s*"}, -- null
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{type = "literal", pattern = "[Tt][Rr][Uu][Ee]%s*"}, -- true
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{type = "literal", pattern = "[Ff][Aa][Ll][Ss][Ee]%s*"}, -- false
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{type = "literal", pattern = "\\[nrtfb\\\"']"}, -- escaped chars
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{type = "literal", pattern = "'\\u%x%x%x%x'"}, -- unicode sequence
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-- quoted strings
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{type = "string", pattern = {'"', '"', '\\'}},
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{type = "string", pattern = {"'", "'", '\\'}},
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{type = "string", pattern = {'"""', '"""', '\\'}},
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{type = "string", pattern = {"'''", "'''", '\\'}},
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-- numbers
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{type = "number", pattern = "0[bB][%d]+"},
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{type = "number", pattern = "0[xX][%da-fA-F]+"},
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{type = "number", pattern = "[-+]?%.?%d+"},
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{ -- keys
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pattern = "[a-zA-Z_]+[a-zA-Z%d_]+()%s*=%s*",
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type = { "keyword2", "operator" },
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},
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{ -- interpolated var
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pattern = "%${()[a-zA-Z_]+[a-zA-Z%d_]+()}",
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type = {"keyword", "keyword2", "keyword"},
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},
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},
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}
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234
test.env
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234
test.env
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# https://lite-xl.com/?/tutorials/syntax/highlighting
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# https://www.lua.org/manual/5.3/manual.html#6.4.1
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# https://hexdocs.pm/dotenvy/dotenv-file-format.html
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#########################################################
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lorem ipsum dolor sit amet
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#########################################################
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#line comment
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# line comment
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#line comment
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# line comment
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#########################################################
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empty=
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empty =
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empty=#inline comment
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empty =#inline comment
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emp3ty= #inline comment
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empty = #inline comment
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empty=# inline comment
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empty =# inline comment
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empty= # inline comment
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empty = # inline comment
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#########################################################
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export empty=
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export empty =
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#########################################################
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null=null#inline comment
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null =null #inline comment
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null= null# inline comment
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null = null # inline comment
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NULL=NULL
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NULL =NULL
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NULL= NULL
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NULL = NULL
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NuLL=NuLL
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NUlL =NUlL
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nULL= nULL
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NULll= NUlll
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#########################################################
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true=true
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true =true
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true= true
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true = true
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TRUE=TRUE
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TRUE =TRUE
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TRUE= TRUE
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TRUE = TRUE
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tRUE=tRUE
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TrUE =TrUE
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TRuE= TRuE
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TRUe = TRUe
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#########################################################
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false=false
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false =false
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false= false
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false = false
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FALSE=FALSE
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FALSE =FALSE
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FALSE= FALSE
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FALSE = FALSE
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FaLSE=FaLSE
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FAlSE =FAlSE
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FALSe= FALSe
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fALSE = fALSE
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#########################################################
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string_no_quotes=string value
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string_no_quotes =string value
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string_no_quotes= string value
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string_no_quotes = string value
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string_in_quotes1='string value'
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string_in_quotes1 ='string value'
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string_in_quotes1= 'string value'
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string_in_quotes1 = 'string value'
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string_in_quotes2="string value"
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string_in_quotes2 ="string value"
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string_in_quotes2= "string value"
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string_in_quotes2 = "string value"
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#########################################################
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quotes1_inside_string_no_quotes=string'quotes'value
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quotes1_inside_string_no_quotes =string 'quotes'value
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quotes1_inside_string_no_quotes= string'quotes' value
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quotes1_inside_string_no_quotes = string 'quotes' value
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esc_quotes1_inside_string_no_quotes=string\'quotes\'value
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esc_quotes1_inside_string_no_quotes =string \'quotes\'value
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esc_quotes1_inside_string_no_quotes= string\'quotes\' value
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esc_quotes1_inside_string_no_quotes = string \'quotes\' value
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quotes2_inside_string_no_quotes=string"quotes"value
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quotes2_inside_string_no_quotes =string "quotes"value
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quotes2_inside_string_no_quotes= string"quotes" value
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quotes2_inside_string_no_quotes = string "quotes" value
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esc_quotes2_inside_string_no_quotes=string\"quotes\"value
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esc_quotes2_inside_string_no_quotes =string \"quotes\"value
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esc_quotes2_inside_string_no_quotes= string\"quotes\" value
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esc_quotes2_inside_string_no_quotes = string \"quotes\" value
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#########################################################
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string_no_quotes_and_literals=true started this string
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string_no_quotes_and_literals =false started th=is string
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string_no_quotes_and_literals= null started this string
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string_no_quotes_and_literals = \n started this string
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string_no_quotes_and_literals=now true inside string
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string_no_quotes_and_literals =now false inside string
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string_no_quotes_and_literals= now null inside string
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string_no_quotes_and_literals = now \n inside string
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string_no_quotes_and_literals=string and null
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string_no_quotes_and_literals =string and true
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string_no_quotes_and_literals= string and false
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string_no_quotes_and_literals = string and \n
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#########################################################
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string_in_quotes1_and_literals='true started this string'
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string_in_quotes1_and_literals ='false started this string'
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string_in_quotes1_and_literals= 'null started this string'
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string_in_quotes1_and_literals = '\n started this string'
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string_in_quotes1_and_literals='now true inside string'
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string_in_quotes1_and_literals ='now false inside string'
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string_in_quotes1_and_literals= 'now null inside string'
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string_in_quotes1_and_literals = 'now \n inside string'
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string_in_quotes1_and_literals='string and null'
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string_in_quotes1_and_literals ='string and true'
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string_in_quotes1_and_literals= 'string and false'
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string_in_quotes1_and_literals = 'string and \n'
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#########################################################
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string_in_quotes2_and_literals="true started this string"
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string_in_quotes2_and_literals ="false started this string"
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string_in_quotes2_and_literals= "null started this string"
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string_in_quotes2_and_literals = "\n started this string"
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string_in_quotes2_and_literals="now true inside string"
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string_in_quotes2_and_literals ="now false inside string"
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string_in_quotes2_and_literals= "now null inside string"
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string_in_quotes2_and_literals = "now \n inside string"
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string_in_quotes2_and_literals="string and null"
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string_in_quotes2_and_literals ="string and true"
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string_in_quotes2_and_literals= "string and false"
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string_in_quotes2_and_literals = "string and \n"
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#########################################################
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STRING="just string"
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STRING ="just string"
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STRING= "just string"
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STRING = "just string"
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#########################################################
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STRING=string #comment
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STRING =string #comment
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STRING= string # comment
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STRING = string # comment
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#########################################################
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STRING='#string'#comment
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STRING ='#string' #comment
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STRING= '#string'# comment
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STRING = '#string' # comment
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#########################################################
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STRING="#string"#comment
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STRING ="#string" #comment
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STRING= "#string"# comment
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STRING = "#string" # comment
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#########################################################
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escaped_specials=\n\r\t\f\b\\\'\"
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escaped_specials =\n\r\t\f\b\\\'\"
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escaped_specials= \n\r\t\f\b\\\'\"
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escaped_specials = \n\r\t\f\b\\\'\"
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escaped_specials=\r\t\f\b\n\\\'\"
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escaped_specials =\r\t\f\b\n\\\'\"
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escaped_specials= \r\t\f\b\n\\\'\"
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escaped_specials = \r\t\f\b\n\\\'\"
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\n\r\t\f\b\\\'\" = baaad
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#########################################################
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q_escaped_specials='\n\r\t\f\b\\\'\"'
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q_escaped_specials ='\n\r\t\f\b\\\'\"'
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q_escaped_specials= '\n\r\t\f\b\\\'\"'
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q_escaped_specials = '\n\r\t\f\b\\\'\"'
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#########################################################
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q_escaped_specials="\n\r\t\f\b\\\'\""
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q_escaped_specials ="\n\r\t\f\b\\\'\""
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q_escaped_specials= "\n\r\t\f\b\\\'\""
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q_escaped_specials = "\n\r\t\f\b\\\'\""
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"string"=baaad
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#########################################################
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string_with_keys=key=key=key=key=
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string_with_keys =key=sfd =key=k asdf ey=
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string_with_keys= key=key=key=key=
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string_with_keys = key=key=key=key=
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#########################################################
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interpolated=${MYVAR} #comment
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interpolated= ${MYVAR}
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interpolated=${MYVAR}@example.com
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interpolated= ${MYVAR}@example.com
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interpolated="${MYVAR}@example.com"
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interpolated="This, that, ${MYVAR} and something else"
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interpolated="This, that and ${MYVAR}"
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interpolated_multiline="""
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${MYVAR} lorem ipsum
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dolor ${MYVAR} sit
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amet ${MYVAR}
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"""
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#########################################################
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not_interpolated='${MYVAR}, this and that'
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not_interpolated='This, that, ${MYVAR} and something else'
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not_interpolated='This, that and ${MYVAR}'
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not_interpolated= 'This, that, ${MYVAR} and something else'
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not_interpolated= 'This, that and ${MYVAR}' #comment
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not_interpolated_multiline='''
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${MYVAR} lorem ipsum
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dolor ${MYVAR} sit
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amet ${MYVAR}
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'''
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#########################################################
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number=1025
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number =-1025
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number= +1025
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number = -1025
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number=+1025
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number=0b1025
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number=0B1025
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number=0x1025
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number=0XDEADbeef
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number=0X01234567
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number=0X12ABCDEF
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number =-1025
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number= +1025
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number = -1025
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number=+1025
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number_with_delimiter= 1025.123
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number_with_delimiter= -1025.1234
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number_with_delimiter=+1025.1234
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number_with_delimiter= .123
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number_with_delimiter= -.1234
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number_with_2_delimiters=+.1234
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number_with_2_delimiters= 1025.123.
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number_with_2_delimiters= -1025.1234.
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number_with_2_delimiters=+1025.1234.
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number_with_2_delimiters= .123.
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number_with_2_delimiters= -.1234.
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number_with_2_delimiters=+.1234.
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#########################################################
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