OOStringParsing.h File Reference

import <Foundation/Foundation.h>
import "OOMaths.h"
import "OOTypes.h"
import "legacy_random.h"

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Classes
category	NSString(OOUtilities)

Functions
NSMutableArray *	ScanTokensFromString (NSString *values)
BOOL	ScanVectorFromString (NSString *xyzString, Vector *outVector)
BOOL	ScanHPVectorFromString (NSString *xyzString, HPVector *outVector)
BOOL	ScanQuaternionFromString (NSString *wxyzString, Quaternion *outQuaternion)
BOOL	ScanVectorAndQuaternionFromString (NSString *xyzwxyzString, Vector *outVector, Quaternion *outQuaternion)
Vector	VectorFromString (NSString *xyzString, Vector defaultValue)
Quaternion	QuaternionFromString (NSString *wxyzString, Quaternion defaultValue)
NSString *	StringFromPoint (NSPoint point)
NSPoint	PointFromString (NSString *xyString)
Random_Seed	RandomSeedFromString (NSString *abcdefString)
NSString *	StringFromRandomSeed (Random_Seed seed)
NSString *	OOStringFromDeciCredits (OOCreditsQuantity tenthsOfCredits, BOOL includeDecimal, BOOL includeSymbol)
OOINLINE NSString *	OOStringFromIntCredits (OOCreditsQuantity integerCredits, BOOL includeSymbol)
OOINLINE NSString *	OOCredits (OOCreditsQuantity tenthsOfCredits)
OOINLINE NSString *	OOIntCredits (OOCreditsQuantity integerCredits)
NSString *	OOPadStringToEms (NSString *string, float numEms)
NSArray *	ComponentsFromVersionString (NSString *string)
NSComparisonResult	CompareVersions (NSArray *version1, NSArray *version2)
NSString *	ClockToString (double clock, BOOL adjusting)

Function Documentation

ClockToString()

NSString * ClockToString	(	double	clock,
		BOOL	adjusting
	)

Definition at line 417 of file OOStringParsing.m.

{
    int             days, hrs, mins, secs;
    NSString        *format = nil;
    
    days = floor(clock / 86400.0);
    secs = floor(clock - days * 86400.0);
    hrs = floor(secs / 3600.0);
    secs %= 3600;
    mins = floor(secs / 60.0);
    secs %= 60;
    
    if (adjusting)  format = DESC(@"clock-format-adjusting");
    else  format = DESC(@"clock-format");
    
    return [NSString stringWithFormat:format, days, hrs, mins, secs];
}

Referenced by ClockClockStringForTime().

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CompareVersions()

NSComparisonResult CompareVersions	(	NSArray *	version1,
		NSArray *	version2
	)

Definition at line 385 of file OOStringParsing.m.

{
    NSEnumerator        *leftEnum = nil,
                        *rightEnum = nil;
    NSNumber            *leftComponent = nil,
                        *rightComponent = nil;
    unsigned            leftValue,
                        rightValue;
    
    leftEnum = [version1 objectEnumerator];
    rightEnum = [version2 objectEnumerator];
    
    for (;;)
    {
        leftComponent = [leftEnum nextObject];
        rightComponent = [rightEnum nextObject];
        
        if (leftComponent == nil && rightComponent == nil)  break;  // End of both versions
        
        // We'll get 0 if the component is nil, which is what we want.
        leftValue = [leftComponent unsignedIntValue];
        rightValue = [rightComponent unsignedIntValue];
        
        if (leftValue < rightValue) return NSOrderedAscending;
        if (leftValue > rightValue) return NSOrderedDescending;
    }
    
    // If there was a difference, we'd have returned already.
    return NSOrderedSame;
}

References nil.

Referenced by OoliteCompareVersion().

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ComponentsFromVersionString()

NSArray * ComponentsFromVersionString

(

NSString *

string

)

Definition at line 358 of file OOStringParsing.m.

{
    NSArray             *stringComponents = nil;
    NSMutableArray      *result = nil;
    NSUInteger          i, count;
    int                 value;
    id                  component;
    
    stringComponents = [string componentsSeparatedByString:@" "];
    stringComponents = [[stringComponents objectAtIndex:0] componentsSeparatedByString:@"-"];
    stringComponents = [[stringComponents objectAtIndex:0] componentsSeparatedByString:@"."];
    count = [stringComponents count];
    result = [NSMutableArray arrayWithCapacity:count];
    
    for (i = 0; i != count; ++i)
    {
        component = [stringComponents objectAtIndex:i];
        if ([component respondsToSelector:@selector(intValue)])  value = MAX([component intValue], 0);
        else  value = 0;
        
        [result addObject:[NSNumber numberWithUnsignedInt:value]];
    }
    
    return result;
}

References count, MAX, and nil.

Referenced by OoliteCompareVersion(), and VersionComponents().

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OOCredits()

OOINLINE NSString * OOCredits

(

OOCreditsQuantity

tenthsOfCredits

)

Definition at line 59 of file OOStringParsing.h.

{
    return OOStringFromDeciCredits(tenthsOfCredits, YES, YES);
}

References OOStringFromDeciCredits().

Referenced by Operator_cr(), and Operator_dcr().

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OOIntCredits()

OOINLINE NSString * OOIntCredits

(

OOCreditsQuantity

integerCredits

)

Definition at line 63 of file OOStringParsing.h.

{
    return OOStringFromIntCredits(integerCredits, YES);
}

References OOStringFromIntCredits().

Referenced by Operator_icr(), and Operator_idcr().

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OOPadStringToEms()

NSString * OOPadStringToEms	(	NSString *	string,
		float	numEms
	)

Definition at line 264 of file OOStringParsing.m.

{
    NSString        *result = string;
    float numEms = padEms - OOStringWidthInEm(result);
    if (numEms>0)
    {
        numEms /= OOStringWidthInEm(@" "); // start with wide space
        result=[[@"" stringByPaddingToLength:(NSUInteger)numEms withString: @" " startingAtIndex:0] stringByAppendingString: result];
    }
    // most of the way there, so switch to narrow space
    numEms = padEms - OOStringWidthInEm(result);
    if (numEms>0)
    {
        numEms /= OOStringWidthInEm(@"\037"); // 037 is narrow space
        result=[[@"" stringByPaddingToLength:(NSUInteger)numEms withString: @"\037" startingAtIndex:0] stringByAppendingString: result];
    }
    return result;
}

References OOStringWidthInEm().

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OOStringFromDeciCredits()

NSString * OOStringFromDeciCredits	(	OOCreditsQuantity	tenthsOfCredits,
		BOOL	includeDecimal,
		BOOL	includeSymbol
	)

Definition at line 284 of file OOStringParsing.m.

{
    JSContext           *context = OOJSAcquireContext();
    JSObject            *global = [[OOJavaScriptEngine sharedEngine] globalObject];
    JSObject            *fakeRoot;
    jsval               method;
    jsval               rval;
    NSString            *result = nil;
    jsval               exception;
    BOOL                hadException;
    
    /*  Because the |cr etc. formatting operators call this, and the
        implementation may use string expansion, we need to ensure recursion
        can't happen.
    */
    static BOOL reentrancyLock;
    if (reentrancyLock)  return [NSString stringWithFormat:@"%0.1f", tenthsOfCredits * 0.1];
    
    reentrancyLock = YES;
    
    hadException = JS_GetPendingException(context, &exception);
    JS_ClearPendingException(context);
    
    if (JS_GetMethodById(context, global, OOJSID("formatCredits"), &fakeRoot, &method))
    {
        jsval args[3];
        if (JS_NewNumberValue(context, tenthsOfCredits * 0.1, &args[0]))
        {
            args[1] = OOJSValueFromBOOL(includeDecimal);
            args[2] = OOJSValueFromBOOL(includeSymbol);
            
            OOJSStartTimeLimiter();
            JS_CallFunctionValue(context, global, method, 3, args, &rval);
            OOJSStopTimeLimiter();
            
            result = OOStringFromJSValue(context, rval);
        }
    }
    
    if (hadException)  JS_SetPendingException(context, exception);
    
    OOJSRelinquishContext(context);
    
    if (EXPECT_NOT(result == nil))  result = [NSString stringWithFormat:@"%li", (long)(tenthsOfCredits) / 10];
    
    reentrancyLock = NO;
    
    return result;
}

References EXPECT_NOT, OOJavaScriptEngine::globalObject, nil, OOJSAcquireContext(), OOJSID, OOJSRelinquishContext(), OOJSStartTimeLimiter, OOJSStopTimeLimiter, OOJSValueFromBOOL(), OOStringFromJSValue(), and OOJavaScriptEngine::sharedEngine.

Referenced by OOCredits(), and OOStringFromIntCredits().

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OOStringFromIntCredits()

OOINLINE NSString * OOStringFromIntCredits	(	OOCreditsQuantity	integerCredits,
		BOOL	includeSymbol
	)

Definition at line 54 of file OOStringParsing.h.

{
    return OOStringFromDeciCredits(integerCredits * 10, NO, includeSymbol);
}

References OOStringFromDeciCredits().

Referenced by OOIntCredits().

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PointFromString()

NSPoint PointFromString

(

NSString *

xyString

)

Definition at line 209 of file OOStringParsing.m.

{
    NSArray     *tokens = ScanTokensFromString(xyString);
    NSPoint     result = NSZeroPoint;
    
    NSUInteger n_tokens = [tokens count];
    if (n_tokens == 2)
    {
        result.x = [[tokens objectAtIndex:0] doubleValue];
        result.y = [[tokens objectAtIndex:1] doubleValue];
    }
    return result;
}

References ScanTokensFromString().

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QuaternionFromString()

Quaternion QuaternionFromString	(	NSString *	wxyzString,
		Quaternion	defaultValue
	)

Definition at line 195 of file OOStringParsing.m.

{
    Quaternion result;
    if (!ScanQuaternionFromString(wxyzString, &result))  result = defaultValue;
    return result;
}

References ScanQuaternionFromString().

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RandomSeedFromString()

Random_Seed RandomSeedFromString

(

NSString *

abcdefString

)

Definition at line 224 of file OOStringParsing.m.

{
    Random_Seed             result;
    int                     abcdef[] = { 0, 0, 0, 0, 0, 0};
    int                     i = 0;
    NSString                *error = nil;
    NSScanner               *scanner = [NSScanner scannerWithString:abcdefString];
    
    while (![scanner isAtEnd] && i < 6 && !error)
    {
        if (![scanner scanInt:&abcdef[i++]])  error = @"could not scan a int value.";
    }
    
    if (!error && i < 6)  error = @"found less than six int values.";
    
    if (!error)
    {
        result.a = abcdef[0];
        result.b = abcdef[1];
        result.c = abcdef[2];
        result.d = abcdef[3];
        result.e = abcdef[4];
        result.f = abcdef[5];
    }
    else
    {
        OOLogERR(kOOLogStringRandomSeedConversion, @"cannot make Random_Seed from '%@': %@", abcdefString, error);
        result = kNilRandomSeed;
    }
    
    return result;
}

References Random_Seed::a, Random_Seed::b, Random_Seed::c, Random_Seed::d, Random_Seed::e, Random_Seed::f, kNilRandomSeed, kOOLogStringRandomSeedConversion, nil, and OOLogERR.

Referenced by OOPlanetEntity::initFromDictionary:withAtmosphere:andSeed:forSystem:.

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ScanHPVectorFromString()

BOOL ScanHPVectorFromString	(	NSString *	xyzString,
		HPVector *	outVector
	)

Definition at line 103 of file OOStringParsing.m.

{
    Vector scanVector;
    assert(outVector != NULL);
    BOOL result = ScanVectorFromString(xyzString, &scanVector);
    if (!result)
    {
        return NO;
    }
    *outVector = vectorToHPVector(scanVector);
    return YES;
}

References ScanVectorFromString().

Referenced by OOHPVectorFromObject().

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ScanQuaternionFromString()

BOOL ScanQuaternionFromString	(	NSString *	wxyzString,
		Quaternion *	outQuaternion
	)

Definition at line 116 of file OOStringParsing.m.

{
    GLfloat                 wxyz[] = {1.0, 0.0, 0.0, 0.0};
    int                     i = 0;
    NSString                *error = nil;
    NSScanner               *scanner = nil;
    
    assert(outQuaternion != NULL);
    if (wxyzString == nil) return NO;
    
    if (!error) scanner = [NSScanner scannerWithString:wxyzString];
    while (![scanner isAtEnd] && i < 4 && !error)
    {
        if (![scanner scanFloat:&wxyz[i++]])  error = @"could not scan a float value.";
    }
    
    if (!error && i < 4)  error = @"found less than four float values.";
    
    if (!error)
    {
        outQuaternion->w = wxyz[0];
        outQuaternion->x = wxyz[1];
        outQuaternion->y = wxyz[2];
        outQuaternion->z = wxyz[3];
        quaternion_normalize(outQuaternion);
        return YES;
    }
    else
    {
        OOLogERR(kOOLogStringQuaternionConversion, @"cannot make quaternion from '%@': %@", wxyzString, error);
        return NO;
    }
}

References kOOLogStringQuaternionConversion, nil, and OOLogERR.

Referenced by OOQuaternionFromObject(), and QuaternionFromString().

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ScanTokensFromString()

NSMutableArray * ScanTokensFromString

(

NSString *

values

)

Definition at line 46 of file OOStringParsing.m.

{
    NSMutableArray          *result = nil;
    NSScanner               *scanner = nil;
    NSString                *token = nil;
    static NSCharacterSet   *space_set = nil;
    
    // Note: Shark suggests we're getting a lot of early exits, but testing showed a pretty steady 2% early exit rate.
    if (EXPECT_NOT(values == nil))  return [NSMutableArray array];
    if (EXPECT_NOT(space_set == nil)) space_set = [[NSCharacterSet whitespaceAndNewlineCharacterSet] retain];
    
    result = [NSMutableArray array];
    scanner = [NSScanner scannerWithString:values];
    
    while (![scanner isAtEnd])
    {
        [scanner ooliteScanCharactersFromSet:space_set intoString:NULL];
        if ([scanner ooliteScanUpToCharactersFromSet:space_set intoString:&token])
        {
            [result addObject:token];
        }
    }
    
    return result;
}

References EXPECT_NOT, and nil.

Referenced by OORoleSet::anyRole, PointFromString(), SanitizeActionStatement(), and SanitizeCondition().

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ScanVectorAndQuaternionFromString()

BOOL ScanVectorAndQuaternionFromString	(	NSString *	xyzwxyzString,
		Vector *	outVector,
		Quaternion *	outQuaternion
	)

Definition at line 151 of file OOStringParsing.m.

{
    GLfloat                 xyzwxyz[] = { 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0};
    int                     i = 0;
    NSString                *error = nil;
    NSScanner               *scanner = nil;
    
    assert(outVector != NULL && outQuaternion != NULL);
    if (xyzwxyzString == nil) return NO;
    
    if (!error) scanner = [NSScanner scannerWithString:xyzwxyzString];
    while (![scanner isAtEnd] && i < 7 && !error)
    {
        if (![scanner scanFloat:&xyzwxyz[i++]])  error = @"Could not scan a float value.";
    }
    
    if (!error && i < 7)  error = @"Found less than seven float values.";
    
    if (error)
    {
        OOLogERR(kOOLogStringQuaternionConversion, @"cannot make vector and quaternion from '%@': %@", xyzwxyzString, error);
        return NO;
    }
    
    outVector->x = xyzwxyz[0];
    outVector->y = xyzwxyz[1];
    outVector->z = xyzwxyz[2];
    outQuaternion->w = xyzwxyz[3];
    outQuaternion->x = xyzwxyz[4];
    outQuaternion->y = xyzwxyz[5];
    outQuaternion->z = xyzwxyz[6];
    
    return YES;
}

References kOOLogStringQuaternionConversion, nil, and OOLogERR.

ScanVectorFromString()

BOOL ScanVectorFromString	(	NSString *	xyzString,
		Vector *	outVector
	)

Definition at line 73 of file OOStringParsing.m.

{
    GLfloat                 xyz[] = {0.0, 0.0, 0.0};
    int                     i = 0;
    NSString                *error = nil;
    NSScanner               *scanner = nil;
    
    assert(outVector != NULL);
    if (xyzString == nil) return NO;
    
    if (!error) scanner = [NSScanner scannerWithString:xyzString];
    while (![scanner isAtEnd] && i < 3 && !error)
    {
        if (![scanner scanFloat:&xyz[i++]])  error = @"could not scan a float value.";
    }
    
    if (!error && i < 3)  error = @"found less than three float values.";
    
    if (!error)
    {
        *outVector = make_vector(xyz[0], xyz[1], xyz[2]);
        return YES;
    }
    else
    {
         OOLogERR(kOOLogStringVectorConversion, @"cannot make vector from '%@': %@", xyzString, error);
         return NO;
    }
}

References kOOLogStringVectorConversion, nil, and OOLogERR.

Referenced by OOVectorFromObject(), ScanHPVectorFromString(), and VectorFromString().

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StringFromPoint()

NSString * StringFromPoint

(

NSPoint

point

)

Definition at line 203 of file OOStringParsing.m.

{
    return [NSString stringWithFormat:@"%f %f", point.x, point.y];
}

StringFromRandomSeed()

NSString * StringFromRandomSeed

(

Random_Seed

seed

)

Definition at line 258 of file OOStringParsing.m.

{
    return [NSString stringWithFormat: @"%d %d %d %d %d %d", seed.a, seed.b, seed.c, seed.d, seed.e, seed.f];
}

VectorFromString()

Vector VectorFromString	(	NSString *	xyzString,
		Vector	defaultValue
	)

Definition at line 187 of file OOStringParsing.m.

{
    Vector result;
    if (!ScanVectorFromString(xyzString, &result))  result = defaultValue;
    return result;
}

References ScanVectorFromString().

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