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Replaced partial functions and error calls with Either String monad #10

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5bf74f1
Replaced partial functions and error calls with Either String monad
homam Apr 8, 2018
a171a16
Updated README doc to match the updated monadic API
homam Apr 8, 2018
110a088
Updated test specs to work with new monadic API
homam Apr 8, 2018
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3 changes: 2 additions & 1 deletion .gitignore
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Original file line number Diff line number Diff line change
@@ -1 +1,2 @@
dist
dist
.stack-work/
12 changes: 6 additions & 6 deletions README.md
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Expand Up @@ -86,7 +86,7 @@ Now let's look at some complete examples.
import Haquery

example :: Tag
example = html [
example = html [] [
head' [] [],
body [] [
div' [at "id" "main", at "class" "c1"] [
Expand Down Expand Up @@ -117,7 +117,7 @@ Let's do a selection.

```haskell
> select "#main" example
[<div id="main" class="c1">
Right [<div id="main" class="c1">
<div id="sub1"></div>
<div id="sub2"></div>
</div>]
Expand All @@ -129,7 +129,7 @@ If we want to modify tags matching a selector, we can use the alter function.

```haskell
> :t alter
alter :: T.Text -> Tag -> (Tag -> Tag) -> Tag
alter :: T.Text -> (Tag -> Tag) -> Tag -> Either String Tag
```

As we can see, the alter functions needs a selector, a tag to search in, and a function which transforms
Expand All @@ -141,8 +141,8 @@ addClass :: T.Text -> Tag -> Tag
```

```haskell
> alter "div" example (addClass "hello-class")
<html>
> alter "div" (addClass "hello-class") example
Right <html>
<head></head>
<body>
<div id="main" class="c1 hello-class">
Expand All @@ -156,5 +156,5 @@ addClass :: T.Text -> Tag -> Tag
For parsing HTML into `Tag`s, use `parseHtml`:

```haskell
parseHtml :: T.Text -> [Tag]
parseHtml :: T.Text -> Either String [Tag]
```
7 changes: 4 additions & 3 deletions haquery.cabal
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Expand Up @@ -2,7 +2,7 @@
-- documentation, see http://haskell.org/cabal/users-guide/

name: haquery
version: 0.1.1.3
version: 1.0.0.0
synopsis: jQuery for Haskell.
-- description:
homepage: https://github.com/crufter/haquery
Expand All @@ -18,13 +18,14 @@ cabal-version: >=1.8
library
exposed-modules: Haquery
-- other-modules:
build-depends: base >= 4.5 && < 4.10,
build-depends: base,
transformers,
split,
containers,
text,
parsec,
tagsoup
tagsoup,
monad-loops
hs-source-dirs: src

Test-Suite test-haquery
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