Shift/reduce conflict?

[iquin]

Hi,

For an input where "xxxyxz", "xyxz", "xxxz" and "xz" are all valid,
I tried the following (flex not used):

start: xx xy xz
xx: |'x''x'
xy: |'x''y'
xz: 'x''z'

Unfortunately, it doesn't seem to work. Once the first 'x' is read,
only 'x' is expected, 'y' and 'z' becomes illegal. Any suggestions?

Thank You,
I.Q.

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