func CalcDiffOfSourceLine(a, b string, mx int) int {
if a == b {
return 0
} // if
delT, insT := LineToTokens(a), LineToTokens(b)
delK, insK := isKeywords(delT), isKeywords(insT)
diff := ed.EditDistanceF(len(delT), len(insT), func(iA, iB int) int {
if delT[iA] == insT[iB] {
return 0
} // if
return 50
}, func(iA int) int {
if delK[iA] {
return 2
}
return 1
}, func(iB int) int {
if insK[iB] {
return 2
}
return 1
})
return diff * mx / (len(delT) + len(insT))
}
func (f *fragment) calcDiff(that diffFragment) int {
switch g := that.(type) {
case *fragment:
if f == nil {
if g == nil {
return 0
} else {
return f.Weight() + g.Weight()
} // else
} // if
if g == nil {
return f.Weight() + g.Weight()
} // if
switch f.Type() {
case df_STAR:
if g.Type() == df_STAR {
return f.Parts[0].calcDiff(g.Parts[0])
} // if
return f.Parts[0].calcDiff(g) + 50
}
if g.Type() == df_STAR {
return f.calcDiff(g.Parts[0]) + 50
} // if
if f.Type() != g.Type() {
return f.Weight() + g.Weight()
} // if
switch f.Type() {
case df_FUNC:
res := int(0)
for i := 0; i < 4; i++ {
res += f.Parts[i].calcDiff(g.Parts[i])
} // for i
res += int(math.Sqrt(float64(f.Parts[4].calcDiff(g.Parts[4]))/100.) * 100)
return res
}
return ed.EditDistanceF(len(f.Parts), len(g.Parts), func(iA, iB int) int {
return f.Parts[iA].calcDiff(g.Parts[iB]) * 3 / 2
}, func(iA int) int {
return f.Parts[iA].Weight()
}, func(iB int) int {
return g.Parts[iB].Weight()
})
}
return f.Weight() + that.Weight()
}