X-Git-Url: https://git.ladys.computer/Shushe/blobdiff_plain/03f9773767ae7811289561abe5162e8b04578991..9dc2d26c66e1ba4434231d63a6aa098cef83043d:/README.markdown diff --git a/README.markdown b/README.markdown index 573fb86..f6a0864 100644 --- a/README.markdown +++ b/README.markdown @@ -102,6 +102,7 @@ In every case, you may supply your own implementation by overriding the - `awk` - `cat` +- `cksum` - `cp` - `date` - `echo` @@ -213,11 +214,8 @@ The following additional variables can be used to control the behaviour A white·space‐separated list of media types to consider X·M·L (default: `application/xml text/xml`). -- **`GENERATOR`:** - The name of the generator program (default: `⛩️📰 书社`). - -- **`VERSION`:** - The current version of `GENERATOR` (default: derived from the current +- **`THISREV`:** + The current version of ⛩️📰 书社 (default: derived from the current git tag/branch/commit). - **`SRCREV`:** @@ -271,16 +269,15 @@ Parsers are used to convert plaintext files into X·M·L trees, as well ⛩️📰 书社 comes with some parsers; namely :⁠— - **`parsers/plain.xslt`:** - Wraps `text/plain` contents in a `` element. + Wraps `text/plain` contents in a `` element. - **`parsers/record-jar.xslt`:** - Converts `text/record-jar` contents into a - `` of `` elements (one for - each record). + Converts `text/record-jar` contents into a `` of + `` elements (one for each record). - **`parsers/tsv.xslt`:** - Converts `text/tab-separated-values` contents into an - `` element. + Converts `text/tab-separated-values` contents into an `` + element. New ⛩️📰 书社 parsers which target plaintext formats should have an `` element with no `@name` or `@mode` and whose @@ -346,6 +343,26 @@ It is **strongly recommended** that auxillary templates in parsers be namespaced (by `@name` or `@mode`) whenever possible, to avoid conflicts between parsers. +### Attributes added during parsing + +⛩️📰 书社 will add a few attributes to the output of the parsing step, + namely :⁠— + +- A `@书社:cksum` attribute on toplevel result elements, giving the + `cksum` checksum of the corresponding source file. + +- For the elements which result from parsing plaintext `` + elements :⁠— + + - A `@书社:parsed-by` attribute, giving a space‐separated list of + parsers which parsed the node. + (Generally, this will be a list of one, but it is possible for the + result of a parse to be another plaintext node, which may be + parsed by a different parser.) + + - A `@书社:media-type` attribute, giving the identified media type of + the plaintext node. + ## Embedding Documents can be embedded in other documents using a `<书社:link>` @@ -362,6 +379,8 @@ Embeds are replaced with the parsed contents of a file, unless the file is an asset, in which case an `` element is produced instead (with the contents of the asset file provided as a base64 `data:` u·r·i). +Embed replacements will be given a `@书社:identifier` attribute whose + value will match the `@xlink:href` of the embed. Embedding takes place after parsing but before transformation, so parsers are able to generate their own embeds. @@ -384,14 +403,6 @@ Transforms are used to convert X·M·L files into their final output, after all necessary parsing and embedding has taken place. ⛩️📰 书社 comes with some transforms; namely :⁠— -- **`transforms/attributes.xslt`:** - Applies transforms to the children of any `<书社:apply-attributes>` - elements, and then applies the attributes of the - `<书社:apply-attributes>` to each result child, replacing the - element with the result. - This is useful in combination with image embeds to apply alt‐text to - the resulting ``. - - **`transforms/asset.xslt`:** Converts `` elements which correspond to recognized media types into the appropriate H·T·M·L elements, and deletes @@ -406,8 +417,8 @@ Transforms are used to convert X·M·L files into their final output, - **`urn:fdc:ladys.computer:20231231:Shu1She4:title`:** Provides the title of the page. - ⛩️📰 书社 automatically encapsulates embeds so that their metadata - does not propogate up to the embedding document. + ⛩️📰 书社 automatically encapsulates H·T·M·L embeds so that their + metadata does not propogate up to the embedding document. To undo this behaviour, remove the `@itemscope` and `@itemtype` attributes from the embed during the transformation phase. @@ -431,8 +442,12 @@ The following params are made available globally in parsers and - **`BUILDTIME`:** The current time. -- **`GENERATOR`:** - The value of the `GENERATOR` variable (if present). +- **`CKSUM`:** + The checksum of the source file (⅌ `cksum`). + +- **`IDENTIFIER`:** + The ⛩️📰 书社 identifier of the source file (a u·r·i beginning with + `about:shushe`). - **`SRCREV`:** The value of the `SRCREV` variable (if present). @@ -440,8 +455,8 @@ The following params are made available globally in parsers and - **`SRCTIME`:** The time at which the source file was last modified. -- **`VERSION`:** - The value of the `VERSION` variable (if present). +- **`THISREV`:** + The value of the `THISREV` variable (if present). The following params are only available in transforms :⁠— @@ -503,6 +518,29 @@ This mechanism can be used to allow transforms to insert content Output wrapping can be entirely disabled by adding a `@书社:disable-output-wrapping` attribute to the top‐level element in the result tree. +This attribute will also prevent wrapping non‐H·T·M·L embeds with an + ``. + +## Applying Attributes + +The `<书社:apply-attributes>` element will apply any attributes on the + element to the element(s) it wraps. +It is especially useful in combination with embeds. + +The `<书社:apply-attributes-to-root>` element will apply any attributes + on the element to the root node of the final transformation result. +It is especially useful in combination with output wrapping. + +In both cases, attributes from various sources are combined with + white·space between them. +Attribute application takes place after all ordinary transforms have + completed. + +Both elements ignore attributes in the `xml:` namespace, except for + `@xml:lang`, which ignores all but the first definition (including + any already present on the root element). +On H·T·M·L and S·V·G elements, `@lang` has the same behaviour as + `@xml:lang`. ## License