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Fix unicode escape sequences in Str docs

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Unicode characters are escaped like \u(00) instead of \{0x00}. Tested
that this is the same for the repl and the hello world example
`Stdout.line "Hello,\u(0A)World!"`.

Found the correct syntax here:
304768569
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David Dunn 2023-01-31 21:39:57 +04:00
parent 773efc74aa
commit 550b22c633
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12
crates/compiler/builtins/roc/Str.roc
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@ -37,17 +37,17 @@
## The `"\n"` in the middle will insert a line break into this string. There are
## other ways of getting a line break in there, but `"\n"` is the most common.
##
## Another way you could insert a newlines is by writing `\u{0x0A}` instead of `\n`.
## Another way you could insert a newlines is by writing `\u(0A)` instead of `\n`.
## That would result in the same string, because the `\u` escape sequence inserts
## [Unicode code points](https://unicode.org/glossary/#code_point) directly into
## the string. The Unicode code point 10 is a newline, and 10 is `0A` in hexadecimal.
## `0x0A` is a Roc hexadecimal literal, and `\u` escape sequences are always
## followed by a hexadecimal literal inside `{` and `}` like this.
## `\u` escape sequences are always followed by a hexadecimal number inside `(` and `)`
## like this.
##
## As another example, `"R\u{0x6F}c"` is the same string as `"Roc"`, because
## `"\u{0x6F}"` corresponds to the Unicode code point for lowercase `o`. If you
## As another example, `"R\u(6F)c"` is the same string as `"Roc"`, because
## `"\u(6F)"` corresponds to the Unicode code point for lowercase `o`. If you
## want to [spice things up a bit](https://en.wikipedia.org/wiki/Metal_umlaut),
## you can write `"R\u{0xF6}c"` as an alternative way to get the string `"Röc"\.
## you can write `"R\u(F6)c"` as an alternative way to get the string `"Röc"\.
##
## Roc strings also support these escape sequences:
##