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Extend mathematic operations support in the kmath-ast parser #120

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CommanderTvis merged 10 commits from extended-grammar into dev 2020-07-27 19:37:09 +03:00
Conversation 1 Commits 10 Files Changed 10 +15 -19
2 changed files with 15 additions and 19 deletions
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8
kmath-ast/build.gradle.kts
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@ -9,21 +9,15 @@ kotlin.sourceSets {
commonMain {
dependencies {
api(project(":kmath-core"))
implementation("com.github.h0tk3y.betterParse:better-parse-multiplatform:0.4.0-alpha-3")
implementation("com.github.h0tk3y.betterParse:better-parse-multiplatform-metadata:0.4.0-alpha-3")
implementation("com.github.h0tk3y.betterParse:better-parse:0.4.0")
}
}
jvmMain {
dependencies {
implementation("com.github.h0tk3y.betterParse:better-parse-jvm:0.4.0-alpha-3")
implementation("org.ow2.asm:asm:8.0.1")
implementation("org.ow2.asm:asm-commons:8.0.1")
implementation(kotlin("reflect"))
}
}
jsMain {
dependencies { implementation("com.github.h0tk3y.betterParse:better-parse-js:0.4.0-alpha-3") }
}
}

26
kmath-ast/src/commonMain/kotlin/scientifik/kmath/ast/parser.kt
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@ -7,6 +7,7 @@ import com.github.h0tk3y.betterParse.grammar.parser
import com.github.h0tk3y.betterParse.grammar.tryParseToEnd
import com.github.h0tk3y.betterParse.lexer.Token
import com.github.h0tk3y.betterParse.lexer.TokenMatch
import com.github.h0tk3y.betterParse.lexer.regexToken
import com.github.h0tk3y.betterParse.parser.ParseResult
import com.github.h0tk3y.betterParse.parser.Parser
import scientifik.kmath.operations.FieldOperations
@ -15,20 +16,21 @@ import scientifik.kmath.operations.RingOperations
import scientifik.kmath.operations.SpaceOperations
/**
* TODO move to common
* TODO move to core
*/
object ArithmeticsEvaluator : Grammar<MST>() {
private val num: Token by token("[\\d.]+(?:[eE][-+]?\\d+)?".toRegex())
private val id: Token by token("[a-z_A-Z][\\da-z_A-Z]*".toRegex())
private val lpar: Token by token("\\(".toRegex())
private val rpar: Token by token("\\)".toRegex())
private val comma: Token by token(",".toRegex())
private val mul: Token by token("\\*".toRegex())
private val pow: Token by token("\\^".toRegex())
private val div: Token by token("/".toRegex())
private val minus: Token by token("-".toRegex())
private val plus: Token by token("\\+".toRegex())
private val ws: Token by token("\\s+".toRegex(), ignore = true)
// TODO replace with "...".toRegex() when better-parse 0.4.1 is released
private val num: Token by regexToken("[\\d.]+(?:[eE][-+]?\\d+)?")
private val id: Token by regexToken("[a-z_A-Z][\\da-z_A-Z]*")
private val lpar: Token by regexToken("\\(")
private val rpar: Token by regexToken("\\)")
private val comma: Token by regexToken(",")
private val mul: Token by regexToken("\\*")
private val pow: Token by regexToken("\\^")
private val div: Token by regexToken("/")
private val minus: Token by regexToken("-")
private val plus: Token by regexToken("\\+")
private val ws: Token by regexToken("\\s+", ignore = true)
private val number: Parser<MST> by num use { MST.Numeric(text.toDouble()) }
private val singular: Parser<MST> by id use { MST.Symbolic(text) }