mirror of
https://github.com/nim-lang/Nim.git
synced 2026-04-19 14:00:35 +00:00
use single backtick (#17141)
This commit is contained in:
@@ -7,7 +7,7 @@
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# distribution, for details about the copyright.
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#
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# An ``include`` file for the different hash set implementations.
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# An `include` file for the different hash set implementations.
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template maxHash(t): untyped = high(t.data)
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@@ -60,13 +60,13 @@ template withLock(t, x: untyped) =
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template withValue*[A, B](t: var SharedTable[A, B], key: A,
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value, body: untyped) =
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## retrieves the value at ``t[key]``.
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## `value` can be modified in the scope of the ``withValue`` call.
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## retrieves the value at `t[key]`.
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## `value` can be modified in the scope of the `withValue` call.
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##
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## .. code-block:: nim
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##
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## sharedTable.withValue(key, value) do:
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## # block is executed only if ``key`` in ``t``
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## # block is executed only if `key` in `t`
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## # value is threadsafe in block
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## value.name = "username"
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## value.uid = 1000
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@@ -84,18 +84,18 @@ template withValue*[A, B](t: var SharedTable[A, B], key: A,
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template withValue*[A, B](t: var SharedTable[A, B], key: A,
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value, body1, body2: untyped) =
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## retrieves the value at ``t[key]``.
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## `value` can be modified in the scope of the ``withValue`` call.
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## retrieves the value at `t[key]`.
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## `value` can be modified in the scope of the `withValue` call.
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##
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## .. code-block:: nim
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##
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## sharedTable.withValue(key, value) do:
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## # block is executed only if ``key`` in ``t``
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## # block is executed only if `key` in `t`
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## # value is threadsafe in block
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## value.name = "username"
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## value.uid = 1000
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## do:
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## # block is executed when ``key`` not in ``t``
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## # block is executed when `key` not in `t`
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## raise newException(KeyError, "Key not found")
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##
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acquire(t.lock)
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@@ -112,8 +112,8 @@ template withValue*[A, B](t: var SharedTable[A, B], key: A,
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release(t.lock)
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proc mget*[A, B](t: var SharedTable[A, B], key: A): var B =
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## retrieves the value at ``t[key]``. The value can be modified.
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## If `key` is not in `t`, the ``KeyError`` exception is raised.
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## retrieves the value at `t[key]`. The value can be modified.
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## If `key` is not in `t`, the `KeyError` exception is raised.
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withLock t:
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var hc: Hash
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var index = rawGet(t, key, hc)
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@@ -126,10 +126,10 @@ proc mget*[A, B](t: var SharedTable[A, B], key: A): var B =
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raise newException(KeyError, "key not found")
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proc mgetOrPut*[A, B](t: var SharedTable[A, B], key: A, val: B): var B =
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## retrieves value at ``t[key]`` or puts ``val`` if not present, either way
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## retrieves value at `t[key]` or puts `val` if not present, either way
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## returning a value which can be modified. **Note**: This is inherently
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## unsafe in the context of multi-threading since it returns a pointer
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## to ``B``.
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## to `B`.
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withLock t:
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mgetOrPutImpl(enlarge)
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@@ -144,24 +144,24 @@ template tabCellHash(i) = t.data[i].hcode
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proc withKey*[A, B](t: var SharedTable[A, B], key: A,
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mapper: proc(key: A, val: var B, pairExists: var bool)) =
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## Computes a new mapping for the ``key`` with the specified ``mapper``
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## Computes a new mapping for the `key` with the specified `mapper`
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## procedure.
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##
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## The ``mapper`` takes 3 arguments:
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## The `mapper` takes 3 arguments:
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##
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## 1. ``key`` - the current key, if it exists, or the key passed to
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## ``withKey`` otherwise;
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## 2. ``val`` - the current value, if the key exists, or default value
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## 1. `key` - the current key, if it exists, or the key passed to
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## `withKey` otherwise;
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## 2. `val` - the current value, if the key exists, or default value
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## of the type otherwise;
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## 3. ``pairExists`` - ``true`` if the key exists, ``false`` otherwise.
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## 3. `pairExists` - `true` if the key exists, `false` otherwise.
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##
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## The ``mapper`` can can modify ``val`` and ``pairExists`` values to change
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## The `mapper` can can modify `val` and `pairExists` values to change
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## the mapping of the key or delete it from the table.
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## When adding a value, make sure to set ``pairExists`` to ``true`` along
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## with modifying the ``val``.
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## When adding a value, make sure to set `pairExists` to `true` along
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## with modifying the `val`.
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##
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## The operation is performed atomically and other operations on the table
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## will be blocked while the ``mapper`` is invoked, so it should be short and
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## will be blocked while the `mapper` is invoked, so it should be short and
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## simple.
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##
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## Example usage:
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@@ -196,7 +196,7 @@ proc `[]=`*[A, B](t: var SharedTable[A, B], key: A, val: B) =
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putImpl(enlarge)
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proc add*[A, B](t: var SharedTable[A, B], key: A, val: B) =
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## puts a new (key, value)-pair into `t` even if ``t[key]`` already exists.
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## puts a new (key, value)-pair into `t` even if `t[key]` already exists.
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## This can introduce duplicate keys into the table!
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withLock t:
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addImpl(enlarge)
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@@ -49,8 +49,8 @@ else:
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proc c_unsetenv(env: cstring): cint {.
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importc: "unsetenv", header: "<stdlib.h>".}
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# Environment handling cannot be put into RTL, because the ``envPairs``
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# iterator depends on ``environment``.
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# Environment handling cannot be put into RTL, because the `envPairs`
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# iterator depends on `environment`.
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var
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envComputed {.threadvar.}: bool
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@@ -20,10 +20,10 @@ proc osErrorMsg*(errorCode: OSErrorCode): string =
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##
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## The error code can be retrieved using the `osLastError proc <#osLastError>`_.
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##
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## If conversion fails, or ``errorCode`` is ``0`` then ``""`` will be
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## If conversion fails, or `errorCode` is `0` then `""` will be
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## returned.
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##
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## On Windows, the ``-d:useWinAnsi`` compilation flag can be used to
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## On Windows, the `-d:useWinAnsi` compilation flag can be used to
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## make this procedure use the non-unicode Win API calls to retrieve the
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## message.
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##
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@@ -62,15 +62,15 @@ proc newOSError*(
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): owned(ref OSError) {.noinline.} =
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## Creates a new `OSError exception <system.html#OSError>`_.
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##
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## The ``errorCode`` will determine the
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## The `errorCode` will determine the
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## message, `osErrorMsg proc <#osErrorMsg,OSErrorCode>`_ will be used
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## to get this message.
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##
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## The error code can be retrieved using the `osLastError proc
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## <#osLastError>`_.
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##
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## If the error code is ``0`` or an error message could not be retrieved,
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## the message ``unknown OS error`` will be used.
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## If the error code is `0` or an error message could not be retrieved,
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## the message `unknown OS error` will be used.
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##
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## See also:
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## * `osErrorMsg proc <#osErrorMsg,OSErrorCode>`_
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@@ -99,13 +99,13 @@ proc osLastError*(): OSErrorCode {.sideEffect.} =
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##
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## This procedure is useful in the event when an OS call fails. In that case
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## this procedure will return the error code describing the reason why the
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## OS call failed. The ``OSErrorMsg`` procedure can then be used to convert
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## OS call failed. The `OSErrorMsg` procedure can then be used to convert
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## this code into a string.
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##
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## **Warning**:
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## The behaviour of this procedure varies between Windows and POSIX systems.
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## On Windows some OS calls can reset the error code to ``0`` causing this
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## procedure to return ``0``. It is therefore advised to call this procedure
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## On Windows some OS calls can reset the error code to `0` causing this
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## procedure to return `0`. It is therefore advised to call this procedure
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## immediately after an OS call fails. On POSIX systems this is not a problem.
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##
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## See also:
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@@ -1,5 +1,5 @@
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# Include file that implements 'DirSep' and friends. Do not import this when
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# you also import ``os.nim``!
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# you also import `os.nim`!
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# Improved based on info in 'compiler/platform.nim'
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@@ -88,7 +88,7 @@ const
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ExtSep* = '.'
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## The character which separates the base filename from the extension;
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## for example, the `'.'` in ``os.nim``.
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## for example, the `'.'` in `os.nim`.
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# MacOS paths
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# ===========
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@@ -13,24 +13,24 @@
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import unicode
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proc editDistance*(a, b: string): int {.noSideEffect.} =
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## Returns the **unicode-rune** edit distance between ``a`` and ``b``.
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## Returns the **unicode-rune** edit distance between `a` and `b`.
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##
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## This uses the `Levenshtein`:idx: distance algorithm with only a linear
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## memory overhead.
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runnableExamples: static: doAssert editdistance("Kitten", "Bitten") == 1
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if len(a) > len(b):
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# make ``b`` the longer string
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# make `b` the longer string
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return editDistance(b, a)
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# strip common prefix
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var
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iStart = 0 ## The character starting index of the first rune in both strings ``a`` and ``b``
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iStart = 0 ## The character starting index of the first rune in both strings `a` and `b`
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iNextA = 0
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iNextB = 0
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runeA, runeB: Rune
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lenRunesA = 0 ## The number of relevant runes in string ``a``.
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lenRunesB = 0 ## The number of relevant runes in string ``b``.
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lenRunesA = 0 ## The number of relevant runes in string `a`.
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lenRunesB = 0 ## The number of relevant runes in string `b`.
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block commonPrefix:
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# ``a`` is the shorter string
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# `a` is the shorter string
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while iStart < len(a):
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iNextA = iStart
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a.fastRuneAt(iNextA, runeA, doInc = true)
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@@ -44,9 +44,9 @@ proc editDistance*(a, b: string): int {.noSideEffect.} =
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var
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# we know that we are either at the start of the strings
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# or that the current value of runeA is not equal to runeB
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# => start search for common suffix after the current rune (``i_next_*``)
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iEndA = iNextA ## The exclusive upper index bound of string ``a``.
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iEndB = iNextB ## The exclusive upper index bound of string ``b``.
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# => start search for common suffix after the current rune (`i_next_*`)
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iEndA = iNextA ## The exclusive upper index bound of string `a`.
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iEndB = iNextB ## The exclusive upper index bound of string `b`.
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iCurrentA = iNextA
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iCurrentB = iNextB
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block commonSuffix:
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@@ -69,8 +69,8 @@ proc editDistance*(a, b: string): int {.noSideEffect.} =
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addRunesB = 0
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iCurrentA = iNextA
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iCurrentB = iNextB
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if iCurrentA >= len(a): # ``a`` exhausted
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if iCurrentB < len(b): # ``b`` not exhausted
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if iCurrentA >= len(a): # `a` exhausted
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if iCurrentB < len(b): # `b` not exhausted
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iEndA = iCurrentA
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iEndB = iCurrentB
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inc(lenRunesA, addRunesA)
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@@ -79,7 +79,7 @@ proc editDistance*(a, b: string): int {.noSideEffect.} =
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b.fastRuneAt(iEndB, runeB)
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inc(lenRunesB)
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if iEndB >= len(b): break
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elif iCurrentB >= len(b): # ``b`` exhausted and ``a`` not exhausted
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elif iCurrentB >= len(b): # `b` exhausted and `a` not exhausted
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iEndA = iCurrentA
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iEndB = iCurrentB
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inc(lenRunesA, addRunesA)
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@@ -12,7 +12,7 @@
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## **Since**: Version 1.4.
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##
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## One can test for the existance of this standard module
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## via ``defined(nimHasEffectTraitsModule)``.
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## via `defined(nimHasEffectTraitsModule)`.
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import macros
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@@ -22,33 +22,33 @@ proc isGcSafeImpl(n: NimNode): bool = discard "see compiler/vmops.nim"
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proc hasNoSideEffectsImpl(n: NimNode): bool = discard "see compiler/vmops.nim"
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proc getRaisesList*(fn: NimNode): NimNode =
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## Extracts the ``.raises`` list of the func/proc/etc ``fn``.
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## ``fn`` has to be a resolved symbol of kind ``nnkSym``. This
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## implies that the macro that calls this proc should accept ``typed``
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## arguments and not ``untyped`` arguments.
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## Extracts the `.raises` list of the func/proc/etc `fn`.
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## `fn` has to be a resolved symbol of kind `nnkSym`. This
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## implies that the macro that calls this proc should accept `typed`
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## arguments and not `untyped` arguments.
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expectKind fn, nnkSym
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result = getRaisesListImpl(fn)
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proc getTagsList*(fn: NimNode): NimNode =
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## Extracts the ``.tags`` list of the func/proc/etc ``fn``.
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## ``fn`` has to be a resolved symbol of kind ``nnkSym``. This
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## implies that the macro that calls this proc should accept ``typed``
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## arguments and not ``untyped`` arguments.
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## Extracts the `.tags` list of the func/proc/etc `fn`.
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## `fn` has to be a resolved symbol of kind `nnkSym`. This
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## implies that the macro that calls this proc should accept `typed`
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## arguments and not `untyped` arguments.
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expectKind fn, nnkSym
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result = getTagsListImpl(fn)
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proc isGcSafe*(fn: NimNode): bool =
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## Return true if the func/proc/etc ``fn`` is `gcsafe`.
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## ``fn`` has to be a resolved symbol of kind ``nnkSym``. This
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## implies that the macro that calls this proc should accept ``typed``
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## arguments and not ``untyped`` arguments.
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## Return true if the func/proc/etc `fn` is `gcsafe`.
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## `fn` has to be a resolved symbol of kind `nnkSym`. This
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## implies that the macro that calls this proc should accept `typed`
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## arguments and not `untyped` arguments.
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expectKind fn, nnkSym
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result = isGcSafeImpl(fn)
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proc hasNoSideEffects*(fn: NimNode): bool =
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## Return true if the func/proc/etc ``fn`` has `noSideEffect`.
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## ``fn`` has to be a resolved symbol of kind ``nnkSym``. This
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## implies that the macro that calls this proc should accept ``typed``
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## arguments and not ``untyped`` arguments.
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## Return true if the func/proc/etc `fn` has `noSideEffect`.
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## `fn` has to be a resolved symbol of kind `nnkSym`. This
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## implies that the macro that calls this proc should accept `typed`
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## arguments and not `untyped` arguments.
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expectKind fn, nnkSym
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result = hasNoSideEffectsImpl(fn)
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@@ -1,5 +1,5 @@
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## This module provides further logic operators like 'forall' and 'exists'
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## They are only supported in ``.ensures`` etc pragmas.
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## They are only supported in `.ensures` etc pragmas.
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proc `->`*(a, b: bool): bool {.magic: "Implies".}
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proc `<->`*(a, b: bool): bool {.magic: "Iff".}
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@@ -60,7 +60,7 @@ func sumPairwise[T](x: openArray[T], i0, n: int): T =
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result = sumPairwise(x, i0, n2) + sumPairwise(x, i0 + n2, n - n2)
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func sumPairs*[T](x: openArray[T]): T =
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## Pairwise (cascade) summation of ``x[i0:i0+n-1]``, with O(log n) error growth
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## Pairwise (cascade) summation of `x[i0:i0+n-1]`, with O(log n) error growth
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## (vs O(n) for a simple loop) with negligible performance cost if
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## the base case is large enough.
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##
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@@ -11,7 +11,7 @@ when defined(nimdoc):
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type
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Impl = distinct int64
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Time* = Impl ## \
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## Wrapper for ``time_t``. On posix, this is an alias to ``posix.Time``.
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## Wrapper for `time_t`. On posix, this is an alias to `posix.Time`.
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elif defined(windows):
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when defined(i386) and defined(gcc):
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type Time* {.importc: "time_t", header: "<time.h>".} = distinct int32
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@@ -7,7 +7,7 @@
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# distribution, for details about the copyright.
|
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#
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## This module implements the ``with`` macro for easy
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## This module implements the `with` macro for easy
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## function chaining. See https://github.com/nim-lang/RFCs/issues/193
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## and https://github.com/nim-lang/RFCs/issues/192 for details leading to this
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## particular design.
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