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2019-12-11Improved template API and fixed a bug. Closes #5979.John MacFarlane1-29/+7
* Text.Pandoc.Templates [API change] + Add Monad wrappers `WithDefaultPartials` and `WithPartials`. Wrapping these around an instance of `PandocMonad` gives us different instances of `TemplateMonad`, with different search behavior in retrieving partials. To compile a template and limit partial search to pandoc's data files, use `runWithDefaultPartials (compileTemplate ...)`. To compile a template and allow partials to be found locally (either on the file system or via HTTP, in the event that the main template has an absolute URL), ue `runWithPartials (compileTemplate ...)`. + Export `getTemplate`, which seeks a template locally, or via HTTP if the template has an absolute URL, falling back to the data files if not found. + Export `compileDefaultTemplate` -- does `getDefaultTemplate` and compiles the result, raising an error on failure. * Text.Pandoc.Class [API change] + Remove `TemplateMonad` instances for `PandocIO` and `PandocPure`. These were too limiting and caused a bug whereby a local partial could be used even when the default template was requested. We now rely on instances provided in the Templates module. Text.Pandoc.App.OutputSettings + Simplify template retrieval code.
2019-12-04Fix regression with behavior of --variable.John MacFarlane1-2/+8
Previously -Vfoo=1 -Vfoo=2 would produce a list value for foo; with 2.8 it produced just '2'. This commit restores the earlier beahvior. Closes #5962.
2019-11-26Add pdf to list of output formats (`--list-output-formats`).John MacFarlane1-1/+2
Closes #5938.
2019-11-17Reverted the behavior change with `--title-prefix`.John MacFarlane2-2/+4
It now implies `--standalone` again, as before.
2019-11-17Ensure that options imply `--standalone` even in defaults file.John MacFarlane1-14/+15
Certain options (`--self-contained`, `--include-in-header`, etc.) imply `--standalone`. We now handle this after option parsing so that it affects options specified in defaults files too. Behavior change: `--title-prefix` no longer implies `--standalone`.
2019-11-14Default files: Allow leaving input-files blank again.John MacFarlane1-3/+4
Leaving it blank yields a Nothing value (interpreted as stdin). Providing an empty list is intepreted as no input. This resolves one part of #5888.
2019-11-14Change optInputFiles to a `Maybe [FilePath]`.John MacFarlane3-9/+15
`Nothing` means: nothing specified. `Just []` means: an empty list specified (e.g. in defaults). Potentially these could lead to different behavior: see #5888.
2019-11-14Allow combining `-Vheader-includes` and `--include-in-header`.John MacFarlane1-15/+21
Closes #5904.
2019-11-14Fix regression preventing header-includes from being set using -V.John MacFarlane1-1/+2
See #5904.
2019-11-13Default files: combine with prior values when appropriate.John MacFarlane1-21/+45
Certain command-line arguments can be repeated: `--metadata-file`, `--css`, `--include-in-header`, `--include-before-body`, `--include-after-body`, `--variable`, `--metadata`, `--syntax-definition`. In these cases, values specified in default files should be added to the list rather than replacing values specified earlier on the command line (perhaps in other default files). So, for example, if one does pandoc --variable foo=3 --defaults d1 --defaults d2 and `d1` sets the variable `bar` and `d2` sets `baz`, all three variables will be set. Closes #5894.
2019-11-13Use `atx-headers` rather than `setext-headers` in defaults file...John MacFarlane1-2/+2
for consistency with CLI options. See #5894.
2019-11-12Switch to new pandoc-types and use Text instead of String [API change].despresc4-107/+111
PR #5884. + Use pandoc-types 1.20 and texmath 0.12. + Text is now used instead of String, with a few exceptions. + In the MediaBag module, some of the types using Strings were switched to use FilePath instead (not Text). + In the Parsing module, new parsers `manyChar`, `many1Char`, `manyTillChar`, `many1TillChar`, `many1Till`, `manyUntil`, `mantyUntilChar` have been added: these are like their unsuffixed counterparts but pack some or all of their output. + `glob` in Text.Pandoc.Class still takes String since it seems to be intended as an interface to Glob, which uses strings. It seems to be used only once in the package, in the EPUB writer, so that is not hard to change.
2019-11-07Fix list fields in Opt so they aren't reversed.John MacFarlane2-28/+24
Previously optIncludeInHeader, etc. were in reverse order. This has been changed to promote #5881. Note also that the `sourcefile` variable used to be sometimes a string, sometimes a list (when there was more than one). Now it is always a list.
2019-11-07Change merge behavior for metadata.John MacFarlane1-1/+1
Previously, if a document contained two YAML metadata blocks that set the same field, the conflict would be resolved in favor of the first. Now it is resolved in favor of the second (due to a change in pandoc-types). This makes the behavior more uniform with other things in pandoc (such as reference links and `--metadata-file`).
2019-11-06Add and apply filters in order (not reversed).John MacFarlane1-4/+2
This changes `applyFilters` from Text.Pandoc.Filter so that it does a left fold rather than a right fold, applying the filters in the order listed. [behavior change] The command-line arguments are accumulated in order instead of reverse order. A first step twoards #5881.
2019-11-06Allow singular input-file in defaults file.John MacFarlane1-0/+4
Closes #5877.
2019-11-03Allow pdf output to stdout.John MacFarlane1-12/+15
PDF output will not be output to the terminal, but can be sent to stdout using either `-o -` or a pipe. The intermediate format will be determined based on the setting of `--pdf-engine`. Closes #5751.
2019-11-02Move extension-adding to applyDefaultsJohn MacFarlane1-6/+5
2019-11-01Revert "ALlow multiple comma-separated files for `--defaults`."John MacFarlane1-7/+6
This reverts commit e96f3fd813b3f8b73c3457ff6e9177e2a4a74164.
2019-11-01ALlow multiple comma-separated files for `--defaults`.John MacFarlane1-6/+7
2019-11-01Factor out applyDefaults in T.P.A.CommandLineOptions.John MacFarlane1-20/+24
2019-11-01`--defaults` improvements.John MacFarlane2-89/+114
- ToYAML instance is now for `Opt -> Opt`, rather than `Opt`. - This allows us to handle `--defaults` without clobbering all the options that occur prior to `--defaults` on the command line. (Note, however, that options in `--defaults` can replace these options if the `--defaults` option is used after them, which may be a bit confusing given the name.) - `--defaults` may now be used multiple times on the command line, allowing users to break defaults into different chunks.
2019-10-29Changes to build with new doctemplates/doclayout.John MacFarlane1-1/+2
The new version of doctemplates adds many features to pandoc's templating system, while remaining backwards-compatible. New features include partials and filters. Using template filters, one can lay out data in enumerated lists and tables. Templates are now layout-sensitive: so, for example, if a text with soft line breaks is interpolated near the end of a line, the text will break and wrap naturally. This makes the templating system much more suitable for programatically generating markdown or other plain-text files from metadata.
2019-10-11Allow output-file to be null in --defaults.John MacFarlane1-1/+1
2019-10-11Remove redundant import.John MacFarlane1-1/+0
2019-10-10Improve parsing of --defaults.John MacFarlane3-31/+254
- Add FromYAML instances to Opt and to all subsidiary types. - Remove the use of HsYAML-aeson, which doesn't give good position information on errors. - Rename some fields in Opt to better match cli options or reflect what the ycontain [API change]: + optMetadataFile -> optMetadataFiles + optPDFEngineArgs -> optPDFEngineOpts + optWrapText -> optWrap - Add IpynbOutput enumerated type to Text.Pandoc.App.Opts. Use this instead fo a string for optIpynbOutput. - Add FromYAML instance for Filter in Text.Pandoc.Filters. With these changes parsing of defaults files should be complete and should give decent error messages. Now (unlike before) we get an error if an unknown field is used.
2019-10-10Add -d as synonym for --defaults.John MacFarlane1-1/+1
2019-10-10Reorder options in `--help`.John MacFarlane1-58/+58
2019-10-10`--metadata-file`: when multiple files specified, second takes precedence...John MacFarlane1-1/+1
on conflicting fields. This changes earlier behavior (but not in a release), where first took precedence. Note that this may seem inconsistent with the behavior of multiple YAML blocks within a document, where the first takes precedence. Still, it is convenient to be able to override defaults with options later on the command line.
2019-10-10Remove unnecessary import.John MacFarlane1-1/+0
2019-10-09--defaults: add .yaml extension if absent, look in user data dir...John MacFarlane1-13/+30
under "defaults" subdirectory.
2019-10-09T.P.App.Opt: rename optReader, optWriter as optFrom, optTo.John MacFarlane3-8/+8
This will allow to: and from: in defaults.
2019-10-09Make sure that input-files works in --default files.John MacFarlane1-1/+1
2019-10-09Basic changes for MathJax 3.zorkow1-1/+1
2019-10-09Initial implementation of --defaults option.John MacFarlane2-3/+24
Need documentation.
2019-10-09T.P.App.Opt: Changed optMetadata to Meta, to allow structured values.John MacFarlane3-14/+32
[API change] The current behavior of the `--metadata` option stays the same.
2019-10-09Change optVariables from [(String, String)] to Context Text.John MacFarlane3-26/+36
In Text.Pandoc.App.Opt [API change].
2019-10-09Options.WriterOptions: Change type of writerVariables to Context Text.John MacFarlane1-0/+5
This will allow structured values. [API change]
2019-10-08Use th to derive json instance for LineEnding.John MacFarlane1-16/+4
2019-10-07Text.Pandoc.Options: change To/FromJSON instances for...John MacFarlane1-1/+3
HTMLMathMethod, CiteMethod, ObfuscationMethod, TrackChanges, WrapOption, TopLevelDivision, ReferenceLocation, HTMLSlideVariant. In each case we use lowercase (or hyphenated lowercase) for constructors to line up more closely with command-line option values. This is a breaking change for those who manually decode or encode JSON for these data types (e.g. for ReaderOptions or WriterOptions). See #5790.
2019-10-07Remove derive_json_via_th flag; always use TH.John MacFarlane2-17/+0
This cuts down on code duplication and reduces the chance for errors. See #4083.
2019-10-07Remove redundant import.John MacFarlane1-1/+0
2019-10-07Use typeMismatch.John MacFarlane1-1/+2
2019-10-06T.P.App.Opt: custom FromJSON instance for LineEnding.John MacFarlane1-8/+17
So either CRLF or crlf will work.
2019-10-06Opt: Change optHighlightStyle to a Maybe String instead of Maybe Style.John MacFarlane3-24/+28
Do the parsing/loading of themes later, after option parsing.
2019-10-06Code cleanupJohn MacFarlane1-19/+23
2019-10-06Text.Pandoc.App.Opt: Remove optBaseHeaderLevel from Opt.John MacFarlane2-3/+1
We now just use optShiftHeadingLevelBy, to avoid redundancy.
2019-10-06Text.Pandoc.App.Opt: Change optShiftHeadingLevel to optShiftHeadingLevelBy...John MacFarlane2-3/+3
to match the option.
2019-10-06Text.Pandoc.App.Opt: more convenient To/FromJSON instances.John MacFarlane1-5/+9
Make the field names like `strip-empty-paragraphs` rather than `optStripEmptyParagraphs`.
2019-09-29Raise error on unsupported extensions. Closes #4338.John MacFarlane2-21/+23
+ An error is now raised if you try to specify (enable or disable) an extension that does not affect the given format, e.g. `docx+pipe_tables`. + The `--list-extensions[=FORMAT]` option now lists only extensions that affect the given FORMAT. + Text.Pandoc.Error: Add constructors `PandocUnknownReaderError`, `PandocUnknownWriterError`, `PandocUnsupportedExtensionError`. [API change] + Text.Pandoc.Extensions now exports `getAllExtensions`, which returns the extensions that affect a given format (whether enabled by default or not). [API change] + Text.Pandoc.Extensions: change type of `parseFormatSpec` from `Either ParseError (String, Extensions -> Extensions)` to `Either ParseError (String, [Extension], [Extension])` [API change]. + Text.Pandoc.Readers: change type of `getReader` so it returns a value in the PandocMonad instance rather than an Either [API change]. Exceptions for unknown formats and unsupported extensions are now raised by this function and need not be handled by the calling function. + Text.Pandoc.Writers: change type of `getWriter` so it returns a value in the PandocMonad instance rather than an Either [API change]. Exceptions for unknown formats and unsupported extensions are now raised by this function and need not be handled by the calling function.
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