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Change Log

4.3.3 - 2022-07-20

  • [Fixed] Disable partial expression indentation with {{~> partial}} to bring behavior closer in line with original javascript version. [#518]
  • [Fixed] Support for using partial context together with partial parameters [#520]

4.3.2 - 2022-07-14

  • [Added] Render functions that reuse Context for custom std::io::Write: render_with_context_to_write and render_template_with_context_to_write

4.3.1 - 2022-06-09

  • [Added] Added support for {{~{variable}~}} syntax [#509]

4.3.0 - 2022-05-18

  • [Changed] update MSRV to 1.57 as rhai requires
  • [Fixed] Reimplemented indent support for partial expression {{> partial}}, which is introduced in 4.2.0. The new implementation is aligned with original javascript version, that every text line generated from partial are indented as {{> partial}} does. prevent_indent will turn-off this feature. [#505]
  • [Changed] changed error support library from quick_error to thiserror

4.2.2 - 2022-03-09

  • [Fixed] Block param scope leaked into partials [#496]
  • [Changed] Use Rust 2021 edition and update MSRV to 1.56

4.2.1 - 2022-01-17

  • [Fixed] Nested partial @partial-block referencing issue [#488]
  • [Fixed] Docs generation on docs.rs for rust-embed feature

4.2.0 - 2022-01-05

  • [Added] RustEmbed support for loading templates from [#484]
  • [Fixed] Parser support for variables begins with digit [#479]
  • [Changed] Keep indent whitespaces for partial expression {{> partial}} as default in handlebarsjs. A new option prevent_indent is provided on Handlebars to turn off this behaviour. [#486]
  • [Changed] Update MSRV to 1.51 due to dependency changes

4.1.6 - 2021-12-03

  • [Added] Create Context from owned serde_json::Value [#477]

4.1.5 - 2021-11-17

  • [Fixed] Single-quote string literal is supported, again [#475]

4.1.4 - 2021-11-06

  • [Fixed] Corrected empty line stripping strategy [#473]

4.1.3 - 2021-09-10

  • [Added] @last variable for each block with object [#466]
  • [Fixed] Missing whitespaces behind expression [#468]

4.1.2 - 2021-08-11

  • [Added] Support for generic types in handlebars_helper!.
  • [Added] Getter and setter for rhai Engine from registry.
  • [Fixed] Improve doc for dev_mode that it has to be enabled before adding templates.

4.1.1 - 2021-07-31

  • [Changed] Update rhai to 1.0 [#455]
  • [Fixed] Empty line stripping for partial include statement, and other corner cases [#458]

4.1.0 - 2021-07-05

  • [Added] export StringOutput as requested in #442
  • [Changed] strict mode now applies to our helper macro handlebars_helper! and built-in helpers based on it.
  • [Fixed] Line stripping feature for standalone statment introduced in #404 is now aligned with handlebarsjs. #448

4.0.1 - 2021-06-15

  • [Fixed] Each block render error with empty array or object [#445]

4.0.0 - 2021-05-25

  • [Added] dev_mode for registry: templates and scripts loaded from file are always reloaded when dev mode enabled [#395]
  • [Added] Registry is now Clone [#395]
  • [Added] New built-in helper len [#421]
  • [Changed] Updated rhai to 0.19 and then 0.20 [#391]
  • [Changed] #each helper now renders else block for non-iterable data [#380]
  • [Changed] TemplateError and ScriptError is now a cause of RenderError [#395]
  • [Changed] Empty lines around block helpers are now stripped [#404]
  • [Changed] Breaking RenderContext::get_partial now returns Option<&Template>
  • [Changed] Breaking Capitalize names like HtmlExpression and IoError based on clippy recommendations [#424]
  • [Changed] Breaking Improved return type of call_inner from HelperDef to avoid misleading [#437]
  • [Fixed] reference starts with null, true and false were parsed incorrectly [#382]
  • [Fixed] dir source path separator bug on windows [#389] [#405]
  • [Fixed] stack overflow with nested @partial-block [#401]
  • [Fixed] value access issue when upper block has a base value [#419]
  • [Fixed] escape rules for Json string literal [#423]
  • [Fixed] Breaking zero-arity subexpressions support [#433] Zero-arity subexpression no longer resolved as variable. The behaviour is now aligned with handlebarsjs. For instance, {{(parent)}} can no longer access parent field of the context object, use {{lookup this "parent"}} instead. This change applies to partial inclusion, too.
  • [Removed] Breaking option to disable source map is removed [#395]
  • [Removed] Breaking TemplateFileError and TemplateRenderError are removed and merged into TemplateError and RenderError [#395]

3.5.5 - 2021-05-03

  • [Fixed] Panic on reporting invalid tag name [#427]

3.5.4 - 2021-03-27

  • [Fixed] Json string literal with escape char [#422]

3.5.3 - 2021-02-20

  • [Fixed] value access issue when upper block has a base value [#419]

3.5.2 - 2020-12-29

  • [Fixed] allow / as trailing separator on Windows, backported from master [#405]

3.5.1 - 2020-10-25

  • [Fixed] dir source path separator bug on windows [#389]

3.5.0 - 2020-09-23

  • [Changed] #each helper now renders else block for non-iterable data [#380]
  • [Fixed] reference starts with null, true and false were parsed incorrectly [#382]

3.4.0 - 2020-08-14

  • [Added] Debug log that can be turned on by using envlog or other implementation, to trace data resolution during rendering [#369]
  • [Fixed] Derived value as block context base value [#343, #353]
  • [Fixed] Partial name aligned with handlebars.js, added support for ., escape [] and string '' name
  • [Changed] HTML escape aligned with handlebars.js, added =, \ and ``` [#366]
  • [Changed] Update rhai to 0.18 [#370]
  • [Fixed] Result of simple helper is now escaped [#373]

3.3.0 - 2020-07-18

  • [Added] Added two new APIs to reuse Context for rendering [#352]
  • [Changed] Update rhai to 0.17 [#354]
  • [Fixed] Fixed mustache.js html expression support, which is "&" instead of "$"

3.2.1 - 2020-06-28

  • [Fixed] block context leak introduced in 3.2.0, #346 [#349]

3.2.0 - 2020-06-28

  • [Added] API to register an pre-processed template [#331]
  • [Added] Helper macro now has support for named argument and helepr hash [#338]
  • [Added] Added support for $ expression that is part of mustache.js [#339]
  • [Changed] Update rhai to 0.15 [#330]
  • [Fixed] else block for each [#344]

3.1.0 - 2020-06-01

  • [Added] All new rhai script helper
  • [Added] multiple parameter support for log helper
  • [Fixed] helper lookup priority
  • [Changed] Send and Sync are not required for RenderContext local helper [#319]
  • [Fixed] partial block when using path as name [#321]

3.0.1 - 2020-01-25

  • [Fixed] Slash in partial path causing syntax error #313

3.0.0 - 2020-01-24

  • [Changed] Added lifetime specifier to Handlebars structure allowing helper definition to have non-static borrowed data #282
  • [Changed] Removed hashbrown dependency #279
  • [Changed] Features has been reorganized. dir_source were turned off by default. #289
  • [Changed] Refactored RenderContext API to improve performance up to 5x over 2.0
  • [Added] Add new BlockContext API for helper developer to store block scope state #307
  • [Fixed] RenderError should be Send and Sync #304

2.0.4 - 2020-01-06

  • [Fixed] RenderError should be Send and Sync #304

2.0.3 - 2020-01-04

  • [Fixed] deprecated warnings on rust 1.42 nightly, due to changes in Error trait

2.0.2 - 2019-09-06

  • [Changed] Extended eq and ne helper for all json types #287
  • [Changed] Removed regex and lazy_static crate to optimize dependency tree

2.0.1 - 2019-07-12

  • [Changed] Fixed issue with block context #275
  • [Changed] Added support for array index in block context #276
  • [Changed] Deprecated RenderContext concat_path
  • [Changed] Update hashbrown to 0.5.0

2.0.0 - 2019-07-02

  • [Changed] Fixed more dyn trait warnings
  • [Changed] #80 Fixed support for zero-param helper
  • [Changed] Changed minimum Rust version to 1.32 as required by getrandom crate

2.0.0-beta.3 - 2019-06-24

  • [Changed] Block parameter revamp, fixed cases for #260 and #264
  • [Changed] #265 Fixed block parameter order in each helper
  • [Changed] #266 Accept any JSON value in boolean helpers
  • [Changed] RenderContext API update, evaluate_absolute removed, use @root instead

2.0.0-beta.1 - 2019-03-16

  • [Changed] Everything changed in yanked 1.2.0
  • [Changed] With Pest updated to 2.1, our minimal rust version is set to 1.31
  • [Changed] Using hashbrown HashMap internally and externally, performance improvement up to 10%
  • [Changed] strict mode also apply to return value of helper expression

1.2.0 - 2018-12-15

This release is yanked.

  • [Changed] Using rust 2018 edition
  • [Changed] Improve strict mode and only raise error when accessing missing fields in expression
  • [Changed] Improved get_helper and get_decorator return type

1.1.0 - 2018-10-24

  • [Added] New option includeZero for if helper
  • [Added] New option level for log helper
  • [Changed] Updated Pest to 2.0, moving minimal Rust version to 1.30

1.0.5 - 2018-10-04

  • [Changed] Added feature no_logging for using handlebars in a logging provider.

1.0.4 - 2018-09-21

  • [Changed] Fixed build on wasm
  • [Changed] Added support for single-quote Json string literal

1.0.3 - 2018-08-29

  • [Changed] Fixed build on Rust 1.23.0

1.0.2 - 2018-08-27

  • [Changed] Update minimal dependency versions

1.0.1 - 2018-08-16

  • [Changed] Added hidden/temp file filter to directory register

1.0.0 - 2018-07-18

  • [Changed] Helper API finalized and new output API
  • [Changed] New internal value API, reduced clone cost
  • [Added] Helper macro
  • [Added] New built-in helpers: gt, lt and some more
  • [Added] Register template folder

0.32.4 - 2018-05-23

  • [Changed] Keep compatibility with pre-1.26 rust by removing impl Trait on parameters

0.32.3 - 2018-05-21

  • [Changed] Fixed escape syntax

0.32.2 - 2018-05-09

  • [Changed] Fixed issue with processing handlebars comment

0.32.1 - 2018-05-02

  • [Changed] Regex 1.0

0.32.0 - 2018-02-16

  • [Added] Strict mode that raises RenderError on accessing non-existed field or array index.

0.31.0 - 2018-02-09

  • [Changed] Fixed handlebars comment support, added html comment output
  • [Changed] Removed some wasted string clones

0.30.1 - 2018-01-31

  • [Changed] Added Debug for public types

0.30.0 - 2018-01-21

  • [Changed] Use pest 1.0

0.30.0-beta.5 - 2018-01-19

  • [Changed] Improve TemplateError display. Now includes a segment of template string.
  • [Changed] Updated lazy_static to 1.0
  • [Changed] Renamed some render functions names.

0.30.0-beta.4 - 2017-11-20

  • [Changed] Added Sync to the nested error of RenderError

0.30.0-beta.3 - 2017-11-16

  • [Changed] Fixed issue template_render methods doesn't respect source_map setting

0.30.0-beta.2 - 2017-10-07

  • [Changed] Fixed parsing keywords like as

0.30.0-beta.1 - 2017-10-03

  • [Changed] Upgrade pest to 1.0
  • [Changed] Fixed template parsing issue when parameter starts with "as"
  • [Changed] Added new HelperDef function to return JSON value
  • [Changed] Added support for @root

0.29.1 - 2017-09-01

  • [Changed] Remove debug! logging from render to avoid conflict when using handlebars as logging backend

0.29.0 - 2017-08-23

  • [Changed] Align JSON path with original JavaScript implementation

0.28.3 - 2017-08-02

  • [Changed] fixed support for escape, again

0.28.2 - 2017-08-01

  • [Changed] Fixed support for escape \\{{. #170

0.28.1 - 2017-07-16

  • [Changed] Mark RenderError with Send trait

0.28.0 - 2017-07-15

  • [Changed] Fixed performance issue discussed in #166
  • [Added] Added error cause RenderError

0.27.0 - 2017-06-03

  • [Changed] partial_legacy is dropped
  • [Changed] context.navigate now returns a Result<&Json,RenderError>. Error is raised when given path cannot be not parsed.
  • [Changed] removed context::extend because it's like to ruin your context outside the helper.
  • [Changed] RenderContext now owns Context, you can host a new Context for particular block helper.
  • [Changed] Added some convenience functions to RenderContext. However, RenderContext may still change in future release.

0.26.1 - 2017-04-23

  • [Changed] Updated to Serde 1.0
  • [Changed] Dropped rustc_serialize, serde is now the default type system

0.25.3 - 2017-04-19

  • [Changed] Fixed path up #147
  • [Changed] Fixed duplicated template inclusion #146

0.25.2 - 2017-03-22

  • [Changed] Fixed bug when including two partials with same name #143

0.25.1 - 2017-02-21

  • [Added] Added support for braces escaping\{{var}}.

0.25.0 - 2017-01-28

  • [Changed] Updated serde family to 0.9.x
  • [Added] Added to_json function to convert data to Json or Value

0.24.2 - 2017-01-28

  • [Added] Added support for {{> @partial-block}}

0.24.1 - 2016-12-30

  • [Changed] Updated regex crate to 0.2, fixed WebAssembly support
  • [Changed] Fixed error reporting in partial.

0.24.0 - 2016-12-30

  • [Added] Decorator support: change context data and helpers during rendering
  • [Changed] (Breaking) Helper trait changed, Context parameter no longer available, use render_context.context() instead.
  • [Changed] (Breaking) Refactored Handlebars APIs, Template and Context are no longer exposed in public API.
  • [Changed] Docs updated.

0.23.0 - 2016-12-12

  • [Changed] partial4 is now default. Use partial_legacy for previous version of template inheritance.
  • [Changed] Corrected subexpression behavior. Subexpression result is treated as string.
  • [Changed] Improved performance for render: better escape function and string writer buffer.

0.22.0 - 2016-10-29

  • [Changed] Improved error reporting. Fixed display for several error types.
  • [Changed] Dropped regex and lazystatic as dependency.
  • [Changed] Examples refined.

0.21.1 - 2016-10-09

  • [Changed] Fixed #106, when property name contains this, it doesn't work

0.21.0 - 2016-09-27

  • [Added] Block params support #101
  • [Added] New partial syntax #103
  • [Changed] Rewrite path parser, better support for ../ #105

0.20.5 - 2016-08-27

  • [Changed] Fixed issue for using [] in expression #100

0.20.4 - 2016-08-27

  • [Changed] Fixed error message for partials #98
  • [Added] Added support for else in each block #99

0.20.3 - 2016-08-14

  • [Changed] Fixed with used inside each block #97

0.20.2 - 2016-08-07

  • [Changed] Allowed dash character in reference #94
  • [Changed] Fixed path error in nested each helpers #95

0.20.0 - 2016-07-31

  • [Changed] Updated serde to 0.8

0.19.1 - 2016-07-26

  • [Changed] Fixed ../ path visitor bug in nested #each #93
  • [Changed] Rollback 0.19.0 change for #if

[0.19.0] - 2016-07-24

  • [Changed] changed &Path to AsRef<Path>
  • [Changed] Fixed "../" path visitor in #each and #if.
  • [Added] set_local_path_root and get_local_path_root for RenderContext.

[0.18.2] - 2016-07-11

  • [Changed] Disable rustc_type when serde_type enabled.

[0.18.1] - 2016-07-04

  • [Changed] Allow - char in reference.

[0.18.0] - 2016-06-25

  • [Changed] Rewrite template parser with pest.

[0.17.0] - 2016-06-05

  • [Added] JSON literals as helper param or hash, and subexpression return value.
  • [Added] RenderError now reports template name, line and column number. Enabled by default. This behavior can be disabled via registry.source_map_enable(false) on production.
  • [Changed] Helper API break change: param(..) and hash(...) now returns a ContextJson as value which contains path as well as parsed Json value. No need to call ctx.navigate(...) any more.
  • [Removed] to_string of Template and TemplateElement which is unnecessary and contains issue

[0.16.1] - 2016-05-15

  • [Removed] num crate dependency which is unnecessary

[0.16.0] - 2016-03-18

  • [Added] new APIs to render template string/files without registering to Registry
  • [Added] new handlebars raw helper syntax

[0.15.0] - 2016-03-01

  • [Changed] update serde libraries to 0.7.x

[0.14.0] - 2016-02-08

  • [Added] new API: register_template_file