diff options
Diffstat (limited to 'lib')
-rw-r--r-- | lib/pure/math.nim | 68 | ||||
-rw-r--r-- | lib/pure/unicode.nim | 59 | ||||
-rw-r--r-- | lib/wrappers/linenoise/clinenoise.c (renamed from lib/wrappers/linenoise/linenoise.c) | 2 | ||||
-rw-r--r-- | lib/wrappers/linenoise/clinenoise.h (renamed from lib/wrappers/linenoise/linenoise.h) | 0 | ||||
-rw-r--r-- | lib/wrappers/linenoise/linenoise.nim | 2 |
5 files changed, 84 insertions, 47 deletions
diff --git a/lib/pure/math.nim b/lib/pure/math.nim index d3f1f3814..821ab738b 100644 --- a/lib/pure/math.nim +++ b/lib/pure/math.nim @@ -56,7 +56,7 @@ type fcNegInf ## value is negative infinity proc classify*(x: float): FloatClass = - ## classifies a floating point value. Returns `x`'s class as specified by + ## Classifies a floating point value. Returns `x`'s class as specified by ## `FloatClass`. # JavaScript and most C compilers have no classify: @@ -74,7 +74,7 @@ proc classify*(x: float): FloatClass = proc binom*(n, k: int): int {.noSideEffect.} = - ## computes the binomial coefficient + ## Computes the binomial coefficient if k <= 0: return 1 if 2*k > n: return binom(n, n-k) result = n @@ -82,18 +82,18 @@ proc binom*(n, k: int): int {.noSideEffect.} = result = (result * (n + 1 - i)) div i proc fac*(n: int): int {.noSideEffect.} = - ## computes the faculty/factorial function. + ## Computes the faculty/factorial function. result = 1 for i in countup(2, n): result = result * i proc isPowerOfTwo*(x: int): bool {.noSideEffect.} = - ## returns true, if `x` is a power of two, false otherwise. + ## Returns true, if `x` is a power of two, false otherwise. ## Zero and negative numbers are not a power of two. return (x > 0) and ((x and (x - 1)) == 0) proc nextPowerOfTwo*(x: int): int {.noSideEffect.} = - ## returns `x` rounded up to the nearest power of two. + ## Returns `x` rounded up to the nearest power of two. ## Zero and negative numbers get rounded up to 1. result = x - 1 when defined(cpu64): @@ -108,28 +108,28 @@ proc nextPowerOfTwo*(x: int): int {.noSideEffect.} = result += 1 + ord(x<=0) proc countBits32*(n: int32): int {.noSideEffect.} = - ## counts the set bits in `n`. + ## Counts the set bits in `n`. var v = n v = v -% ((v shr 1'i32) and 0x55555555'i32) v = (v and 0x33333333'i32) +% ((v shr 2'i32) and 0x33333333'i32) result = ((v +% (v shr 4'i32) and 0xF0F0F0F'i32) *% 0x1010101'i32) shr 24'i32 proc sum*[T](x: openArray[T]): T {.noSideEffect.} = - ## computes the sum of the elements in `x`. + ## Computes the sum of the elements in `x`. ## If `x` is empty, 0 is returned. for i in items(x): result = result + i template toFloat(f: float): float = f proc mean*[T](x: openArray[T]): float {.noSideEffect.} = - ## computes the mean of the elements in `x`, which are first converted to floats. + ## Computes the mean of the elements in `x`, which are first converted to floats. ## If `x` is empty, NaN is returned. ## ``toFloat(x: T): float`` must be defined. for i in items(x): result = result + toFloat(i) result = result / toFloat(len(x)) proc variance*[T](x: openArray[T]): float {.noSideEffect.} = - ## computes the variance of the elements in `x`. + ## Computes the variance of the elements in `x`. ## If `x` is empty, NaN is returned. ## ``toFloat(x: T): float`` must be defined. result = 0.0 @@ -140,41 +140,43 @@ proc variance*[T](x: openArray[T]): float {.noSideEffect.} = result = result / toFloat(len(x)) proc random*(max: int): int {.benign.} - ## returns a random number in the range 0..max-1. The sequence of + ## Returns a random number in the range 0..max-1. The sequence of ## random number is always the same, unless `randomize` is called ## which initializes the random number generator with a "random" ## number, i.e. a tickcount. proc random*(max: float): float {.benign.} - ## returns a random number in the range 0..<max. The sequence of + ## Returns a random number in the range 0..<max. The sequence of ## random number is always the same, unless `randomize` is called ## which initializes the random number generator with a "random" ## number, i.e. a tickcount. This has a 16-bit resolution on windows ## and a 48-bit resolution on other platforms. proc randomize*() {.benign.} - ## initializes the random number generator with a "random" + ## Initializes the random number generator with a "random" ## number, i.e. a tickcount. Note: Does nothing for the JavaScript target, ## as JavaScript does not support this. proc randomize*(seed: int) {.benign.} - ## initializes the random number generator with a specific seed. + ## Initializes the random number generator with a specific seed. ## Note: Does nothing for the JavaScript target, ## as JavaScript does not support this. {.push noSideEffect.} when not defined(JS): proc sqrt*(x: float): float {.importc: "sqrt", header: "<math.h>".} - ## computes the square root of `x`. + ## Computes the square root of `x`. proc cbrt*(x: float): float {.importc: "cbrt", header: "<math.h>".} - ## computes the cubic root of `x` + ## Computes the cubic root of `x` proc ln*(x: float): float {.importc: "log", header: "<math.h>".} - ## computes ln(x). + ## Computes the natural log of `x` proc log10*(x: float): float {.importc: "log10", header: "<math.h>".} + ## Computes the common logarithm (base 10) of `x` proc log2*(x: float): float = return ln(x) / ln(2.0) + ## Computes the binary logarithm (base 2) of `x` proc exp*(x: float): float {.importc: "exp", header: "<math.h>".} - ## computes e**x. + ## Computes the exponential function of `x` (pow(E, x)) proc frexp*(x: float, exponent: var int): float {. importc: "frexp", header: "<math.h>".} @@ -185,11 +187,14 @@ when not defined(JS): ## m. proc round*(x: float): int {.importc: "lrint", header: "<math.h>".} - ## converts a float to an int by rounding. + ## Converts a float to an int by rounding. proc arccos*(x: float): float {.importc: "acos", header: "<math.h>".} + ## Computes the arc cosine of `x` proc arcsin*(x: float): float {.importc: "asin", header: "<math.h>".} + ## Computes the arc sine of `x` proc arctan*(x: float): float {.importc: "atan", header: "<math.h>".} + ## Calculate the arc tangent of `y` / `x` proc arctan2*(y, x: float): float {.importc: "atan2", header: "<math.h>".} ## Calculate the arc tangent of `y` / `x`. ## `atan2` returns the arc tangent of `y` / `x`; it produces correct @@ -197,16 +202,23 @@ when not defined(JS): ## (`x` near 0). proc cos*(x: float): float {.importc: "cos", header: "<math.h>".} + ## Computes the cosine of `x` proc cosh*(x: float): float {.importc: "cosh", header: "<math.h>".} + ## Computes the hyperbolic cosine of `x` proc hypot*(x, y: float): float {.importc: "hypot", header: "<math.h>".} - ## same as ``sqrt(x*x + y*y)``. + ## Computes the hypotenuse of a right-angle triangle with `x` and + ## `y` as its base and height. Equivalent to ``sqrt(x*x + y*y)``. proc sinh*(x: float): float {.importc: "sinh", header: "<math.h>".} + ## Computes the hyperbolic sine of `x` proc sin*(x: float): float {.importc: "sin", header: "<math.h>".} + ## Computes the sine of `x` proc tan*(x: float): float {.importc: "tan", header: "<math.h>".} + ## Computes the tangent of `x` proc tanh*(x: float): float {.importc: "tanh", header: "<math.h>".} + ## Computes the hyperbolic tangent of `x` proc pow*(x, y: float): float {.importc: "pow", header: "<math.h>".} - ## computes x to power raised of y. + ## Computes `x` to power of `y`. proc erf*(x: float): float {.importc: "erf", header: "<math.h>".} ## The error function @@ -269,10 +281,26 @@ when not defined(JS): result = int(rand()) mod max proc trunc*(x: float): float {.importc: "trunc", header: "<math.h>".} + ## Truncates `x` to the decimal point + ## + ## .. code-block:: nim + ## echo trunc(PI) # 3.0 proc floor*(x: float): float {.importc: "floor", header: "<math.h>".} + ## Computes the floor function (i.e., the largest integer not greater than `x`) + ## + ## .. code-block:: nim + ## echo floor(-3.5) ## -4.0 proc ceil*(x: float): float {.importc: "ceil", header: "<math.h>".} + ## Computes the ceiling function (i.e., the smallest integer not less than `x`) + ## + ## .. code-block:: nim + ## echo ceil(-2.1) ## -2.0 proc fmod*(x, y: float): float {.importc: "fmod", header: "<math.h>".} + ## Computes the remainder of `x` divided by `y` + ## + ## .. code-block:: nim + ## echo fmod(-2.5, 0.3) ## -0.1 else: proc mathrandom(): float {.importc: "Math.random", nodecl.} diff --git a/lib/pure/unicode.nim b/lib/pure/unicode.nim index 4446eaa0c..5e20db32b 100644 --- a/lib/pure/unicode.nim +++ b/lib/pure/unicode.nim @@ -27,7 +27,7 @@ proc `==`*(a, b: Rune): bool = return int(a) == int(b) template ones(n: expr): expr = ((1 shl n)-1) proc runeLen*(s: string): int {.rtl, extern: "nuc$1".} = - ## returns the number of Unicode characters of the string `s`. + ## Returns the number of Unicode characters of the string ``s`` var i = 0 while i < len(s): if ord(s[i]) <=% 127: inc(i) @@ -40,7 +40,7 @@ proc runeLen*(s: string): int {.rtl, extern: "nuc$1".} = inc(result) proc runeLenAt*(s: string, i: Natural): int = - ## returns the number of bytes the rune starting at ``s[i]`` takes. + ## Returns the number of bytes the rune starting at ``s[i]`` takes if ord(s[i]) <=% 127: result = 1 elif ord(s[i]) shr 5 == 0b110: result = 2 elif ord(s[i]) shr 4 == 0b1110: result = 3 @@ -50,8 +50,8 @@ proc runeLenAt*(s: string, i: Natural): int = else: result = 1 template fastRuneAt*(s: string, i: int, result: expr, doInc = true) = - ## Returns the unicode character ``s[i]`` in `result`. If ``doInc == true`` - ## `i` is incremented by the number of bytes that have been processed. + ## Returns the Unicode character ``s[i]`` in ``result``. If ``doInc == true`` + ## ``i`` is incremented by the number of bytes that have been processed. bind ones if ord(s[i]) <=% 127: result = Rune(ord(s[i])) @@ -106,8 +106,8 @@ template fastRuneAt*(s: string, i: int, result: expr, doInc = true) = when doInc: inc(i) proc validateUtf8*(s: string): int = - ## returns the position of the invalid byte in ``s`` if the string ``s`` does - ## not hold valid UTF-8 data. Otherwise -1 is returned. + ## Returns the position of the invalid byte in ``s`` if the string ``s`` does + ## not hold valid UTF-8 data. Otherwise ``-1`` is returned. var i = 0 let L = s.len while i < L: @@ -131,11 +131,11 @@ proc validateUtf8*(s: string): int = return -1 proc runeAt*(s: string, i: Natural): Rune = - ## returns the unicode character in `s` at byte index `i` + ## Returns the unicode character in ``s`` at byte index ``i`` fastRuneAt(s, i, result, false) proc toUTF8*(c: Rune): string {.rtl, extern: "nuc$1".} = - ## converts a rune into its UTF8 representation + ## Converts a rune into its UTF-8 representation var i = RuneImpl(c) if i <=% 127: result = newString(1) @@ -174,11 +174,11 @@ proc toUTF8*(c: Rune): string {.rtl, extern: "nuc$1".} = discard # error, exception? proc `$`*(rune: Rune): string = - ## converts a rune to a string + ## Converts a Rune to a string rune.toUTF8 proc `$`*(runes: seq[Rune]): string = - ## converts a sequence of runes to a string + ## Converts a sequence of Runes to a string result = "" for rune in runes: result.add(rune.toUTF8) @@ -1163,8 +1163,8 @@ proc binarySearch(c: RuneImpl, tab: openArray[RuneImpl], len, stride: int): int return -1 proc toLower*(c: Rune): Rune {.rtl, extern: "nuc$1", procvar.} = - ## Converts `c` into lower case. This works for any Unicode character. - ## If possible, prefer `toLower` over `toUpper`. + ## Converts ``c`` into lower case. This works for any Unicode character. + ## If possible, prefer ``toLower`` over ``toUpper``. var c = RuneImpl(c) var p = binarySearch(c, tolowerRanges, len(tolowerRanges) div 3, 3) if p >= 0 and c >= tolowerRanges[p] and c <= tolowerRanges[p+1]: @@ -1175,8 +1175,8 @@ proc toLower*(c: Rune): Rune {.rtl, extern: "nuc$1", procvar.} = return Rune(c) proc toUpper*(c: Rune): Rune {.rtl, extern: "nuc$1", procvar.} = - ## Converts `c` into upper case. This works for any Unicode character. - ## If possible, prefer `toLower` over `toUpper`. + ## Converts ``c`` into upper case. This works for any Unicode character. + ## If possible, prefer ``toLower`` over ``toUpper``. var c = RuneImpl(c) var p = binarySearch(c, toupperRanges, len(toupperRanges) div 3, 3) if p >= 0 and c >= toupperRanges[p] and c <= toupperRanges[p+1]: @@ -1187,6 +1187,7 @@ proc toUpper*(c: Rune): Rune {.rtl, extern: "nuc$1", procvar.} = return Rune(c) proc toTitle*(c: Rune): Rune {.rtl, extern: "nuc$1", procvar.} = + ## Converts ``c`` to title case var c = RuneImpl(c) var p = binarySearch(c, toTitleSinglets, len(toTitleSinglets) div 2, 2) if p >= 0 and c == toTitleSinglets[p]: @@ -1194,8 +1195,8 @@ proc toTitle*(c: Rune): Rune {.rtl, extern: "nuc$1", procvar.} = return Rune(c) proc isLower*(c: Rune): bool {.rtl, extern: "nuc$1", procvar.} = - ## returns true iff `c` is a lower case Unicode character - ## If possible, prefer `isLower` over `isUpper`. + ## Returns true iff ``c`` is a lower case Unicode character. + ## If possible, prefer ``isLower`` over ``isUpper``. var c = RuneImpl(c) # Note: toUpperRanges is correct here! var p = binarySearch(c, toupperRanges, len(toupperRanges) div 3, 3) @@ -1206,8 +1207,8 @@ proc isLower*(c: Rune): bool {.rtl, extern: "nuc$1", procvar.} = return true proc isUpper*(c: Rune): bool {.rtl, extern: "nuc$1", procvar.} = - ## returns true iff `c` is a upper case Unicode character - ## If possible, prefer `isLower` over `isUpper`. + ## Returns true iff ``c`` is a upper case Unicode character. + ## If possible, prefer ``isLower`` over ``isUpper``. var c = RuneImpl(c) # Note: toLowerRanges is correct here! var p = binarySearch(c, tolowerRanges, len(tolowerRanges) div 3, 3) @@ -1218,7 +1219,7 @@ proc isUpper*(c: Rune): bool {.rtl, extern: "nuc$1", procvar.} = return true proc isAlpha*(c: Rune): bool {.rtl, extern: "nuc$1", procvar.} = - ## returns true iff `c` is an *alpha* Unicode character (i.e. a letter) + ## Returns true iff ``c`` is an *alpha* Unicode character (i.e., a letter) if isUpper(c) or isLower(c): return true var c = RuneImpl(c) @@ -1230,17 +1231,18 @@ proc isAlpha*(c: Rune): bool {.rtl, extern: "nuc$1", procvar.} = return true proc isTitle*(c: Rune): bool {.rtl, extern: "nuc$1", procvar.} = + ## Returns true iff ``c`` is a Unicode titlecase character return isUpper(c) and isLower(c) proc isWhiteSpace*(c: Rune): bool {.rtl, extern: "nuc$1", procvar.} = - ## returns true iff `c` is a Unicode whitespace character + ## Returns true iff ``c`` is a Unicode whitespace character var c = RuneImpl(c) var p = binarySearch(c, spaceRanges, len(spaceRanges) div 2, 2) if p >= 0 and c >= spaceRanges[p] and c <= spaceRanges[p+1]: return true proc isCombining*(c: Rune): bool {.rtl, extern: "nuc$1", procvar.} = - ## returns true iff `c` is a Unicode combining character + ## Returns true iff ``c`` is a Unicode combining character var c = RuneImpl(c) # Optimized to return false immediately for ASCII @@ -1251,7 +1253,7 @@ proc isCombining*(c: Rune): bool {.rtl, extern: "nuc$1", procvar.} = (c >= 0xfe20 and c <= 0xfe2f)) iterator runes*(s: string): Rune = - ## iterates over any unicode character of the string `s`. + ## Iterates over any unicode character of the string ``s`` var i = 0 result: Rune @@ -1259,8 +1261,14 @@ iterator runes*(s: string): Rune = fastRuneAt(s, i, result, true) yield result +proc toRunes*(s: string): seq[Rune] = + ## Obtains a sequence containing the Runes in ``s`` + result = newSeq[Rune]() + for r in s.runes: + result.add(r) + proc cmpRunesIgnoreCase*(a, b: string): int {.rtl, extern: "nuc$1", procvar.} = - ## compares two UTF8 strings and ignores the case. Returns: + ## Compares two UTF-8 strings and ignores the case. Returns: ## ## | 0 iff a == b ## | < 0 iff a < b @@ -1277,8 +1285,8 @@ proc cmpRunesIgnoreCase*(a, b: string): int {.rtl, extern: "nuc$1", procvar.} = result = a.len - b.len proc reversed*(s: string): string = - ## returns the reverse of `s`, interpreting it as unicode characters. Unicode - ## combining characters are correctly interpreted as well: + ## Returns the reverse of ``s``, interpreting it as Unicode characters. + ## Unicode combining characters are correctly interpreted as well: ## ## .. code-block:: nim ## @@ -1322,3 +1330,4 @@ when isMainModule: assert reversed("先秦兩漢") == "漢兩秦先" assert reversed("as⃝df̅") == "f̅ds⃝a" assert reversed("a⃞b⃞c⃞") == "c⃞b⃞a⃞" + assert len(toRunes("as⃝df̅")) == runeLen("as⃝df̅") diff --git a/lib/wrappers/linenoise/linenoise.c b/lib/wrappers/linenoise/clinenoise.c index c10557d0e..b4ae32472 100644 --- a/lib/wrappers/linenoise/linenoise.c +++ b/lib/wrappers/linenoise/clinenoise.c @@ -116,7 +116,7 @@ #include <sys/types.h> #include <sys/ioctl.h> #include <unistd.h> -#include "linenoise.h" +#include "clinenoise.h" #define LINENOISE_DEFAULT_HISTORY_MAX_LEN 100 #define LINENOISE_MAX_LINE 4096 diff --git a/lib/wrappers/linenoise/linenoise.h b/lib/wrappers/linenoise/clinenoise.h index fbb01cfaa..fbb01cfaa 100644 --- a/lib/wrappers/linenoise/linenoise.h +++ b/lib/wrappers/linenoise/clinenoise.h diff --git a/lib/wrappers/linenoise/linenoise.nim b/lib/wrappers/linenoise/linenoise.nim index a6260eb12..b7004c6e2 100644 --- a/lib/wrappers/linenoise/linenoise.nim +++ b/lib/wrappers/linenoise/linenoise.nim @@ -14,7 +14,7 @@ type CompletionCallback* = proc (a2: cstring; a3: ptr Completions) {.cdecl.} -{.compile: "linenoise.c".} +{.compile: "clinenoise.c".} proc setCompletionCallback*(a2: ptr CompletionCallback) {. importc: "linenoiseSetCompletionCallback".} |